Top Traders Unplugged

In today’s episode we are joined by Campbell Harvey, Professor of Finance at Duke University and Research Associate at the National Bureau of Economic Research in Cambridge, Massachusetts.  Cam served as Editor of The Journal of Finance from 2006 to 2012 and as the 2016 President of the American Finance Association. He holds a Ph.D. in Finance from the University of Chicago.Although Cam is well-known as being the inventor of the Yield-Curve Indicator, with an eight for eight track record in forecasting recessions in the U.S., he is also involved in crypto and blockchain technology, which made our conversation wide-ranging and super interesting.-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERETopics Discussed in this Episode:The ‘Great Compression’ rather than another Great DepressionHow the Yield Curve indicator was signalling a mild recession even before the Corona crisisWhy politician’s would rather have inflation than raise taxesHow 50% of all companies in the S&P 500 were completely unaware of the risk of pandemicsWhy Bitcoin failed as a hedge in its first ever recessionWhy the US Dollar’s days as a world reserve currency are numberedWhy central banks may now feel incentivised to create their own digital currenciesTechnology and how it’s going to unleash opportunities to transact value & human capital on a scale never seen beforeCam’s somewhat rare, positive outlook for the futureWhy peer to peer transactions and lending will be the way forward-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Follow Moritz on Twitter.Follow Campbell on Twitter.Copyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

In this episode, we discuss the danger of financial products such as the Daily 3x Inverse Natural Gas ETN, the potential end of the 2020 bull market in stocks, Howard Mark’s recent quotes on managing risk & market cycles, how a Trend Following mentality can have a positive affect on your world-view, patience for your system vs patience for an individual position, and why needing to ‘agree’ with your trades can be a dangerous idea.  Questions we answer this week include: How do you avoid losing large open profits during a parabolic move? Is CAGR a good measure of performance?-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Moritz on Twitter.Episode TimeStamps:00:00 – Intro03:15 – Macro recap from Niels04:10 – Weekly review of performance11:25 – Howard Marks quotes on risk management and market cycles29:11 – Patience for your system vs for an individual position34:36 – Q1; Rene: How do you avoid losing a big profit during a parabolic move?40:10 – Q2 & Q3; Peregrin: Do you have any evidence of systems working better when its positions match our opinion of the macro ‘story’?  Does Trend Following system alert its manager to crowd opinions they might otherwise be unaware of?48:48 – Q4; Maurigus: Is CAGR a good measure of performance?57:06 – Benchmark performance updateCopyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

In this special anniversary edition of the Systematic Investor podcast, Jerry Parker joins us on the show to discuss why removing as many filters as possible may be beneficial to your trading system, why we could actually be living in the most ‘certain’ times in history, the importance of laser-like focus and unemotional trading during the best & worst periods, Jerry’s incredible story of despair to eventual victory as a Trading Turtle under Richard Dennis, the fallacy of aiming for the ‘perfect’ system,  Cliff Asness’s quotes on Corey Hoffstein’s Flirting With Models podcast, the deep history of Trend Following, and a lot more!-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Jerry on Twitter.Episode TimeStamps:00:00 – Introduction03:13 – Macro recap from Niels08:16 – Weekly review of performance13:54 – The benefits of keeping it simple17:20 – Why you should take every trade & follow your rules26:16 – Jerry’s incredible story from his journey with Richard Dennis’s ‘Trading Turtles’27:30 – Some more thoughts on Volatility Targeting48:19 – The best performing sectors historically among Trend Followers50:24 – The deep history of Trend Following investors51:31 – Cliff Asness quotes from the Flirting With Models podcast01:00:41 – Performance recap01:31:00 – Some personal highlights, on our 100th episodeCopyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

In today’s episode, we are joined by Michael Green. Michael has over 20 years as a portfolio manager, mainly in the global macro space. Recently he has become well known because of his work on the shift to passive investing, and inevitably this was one of the topics we wanted to ask Mike about. Our conversation wasn’t limited to that however, and we also discussed comparisons between the present day and previous historical crisis (going back to the Roman Empire!), as well as many other interesting subjects.-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERETopics Discussed in this Episode:Passive investingETFs and target date fundsIntergenerational inequalityReal interest rates over historyMean reversion and momentumNegative interest ratesLeverage: recourse vs no recourse (limited liability)MMTYield enhancement strategies-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Follow Moritz on Twitter.Follow Michael on Twitter.Copyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

In today’s show, we discuss why a great defence is necessary for great portfolios, Trend Following on ETFs, why liquidity is often an under-appreciated factor when choosing markets, why you need to include shorts, tips for testing system code, why futures are better for short positions than stocks, and why investing in alternative strategies can allow you to be more aggressive when chasing stock market returns.  We also answer some of your questions, including: What is your chosen measure of liquidity?  Do you place your trades at the open, close, or other times?-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Moritz on Twitter.Episode TimeStamps:00:00 – Intro01:44 – Macro recap from Niels03:00 – Weekly review of returns04:25 – The importance of non-correlated strategies such as Trend Following or Volatility-based15:17 – Q’s 1, 2 & 3; Bruno: What is your chosen measure of liquidity, and how liquid does a market have to be, to be included in your portfolios? How do you size positions, with co-movements in mind?  Are you always trading the front-month contract?26:37 – Q4; Walter: How do you test your system’s code?33:14 – Q’s 5 & 6; Zack: Does Trend Following on ETFs work? What are the optimal time periods when analysing market correlation data?45:01 – Q7: Michael: Do you place your trades at the close, open, or other times?50:23 – Performance recapCopyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

Our guest today is Danielle DiMartino Booth, CEO and chief strategist for Quill intelligence. One of the major themes of our podcast series so far has been the reactions of central banks to the global pandemic, and it’s likely effects on inflation and asset prices. As a former Fed insider, with nine years of experience as an advisor to the president of the Dallas Fed, Danielle is uniquely positioned to give us her take on the action taken by central banks so far, and what their next move is likely to be. However, our conversation was not just about the Fed, as it covered many other interesting topics including the curious timing of the US-China trade talks and when we first learned about COVID in the autumn of 2019 (one for conspiracy theorists!).-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERETopics Discussed in this Episode:COVID-19QE and the transmission mechanismChinaUS bond marketMonetary policy rules and the choice of inflation measureDemocracy: Revolution or direct democracy?China-US tradeInequalityNegative interest ratesBitcoin and ‘Fedcoin’-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Follow Moritz on Twitter.Follow Danielle on Twitter.Copyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

Today, we’re delighted to welcome Mark Rzepczynski onto the show to discuss his time working with John W. Henry and what J. W. Henry’s ‘secret weapon’ was, the most effective way to gain downside protection, how to overcome behavioural biases in investing, how diversification can reduce profitability during huge trends, how to effectively make the case for Trend Following to potential investors, where returns dispersion among CTAs is stemming from, and one of our favourite topics: how many markets in a portfolio is too many?-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Mark on Twitter.Episode TimeStamps:00:00 – Intro01:14 – Macro recap from Niels02:53 – Weekly review of performance05:55 – Niels: Can you tell us about your journey to where you are today?10:24 – Niels: Do you think John Henry’s success in sports can be partly down to his previous Trend Following methodologies?12:18 – Niels: How do think we as humans overcome our behavioural biases in investing?14:32 – Moritz: To what extent do systematic CTAs need laser-like focus, compared to others?17:57 – Moritz: How did the day-to-day business of John W. Henry run?21:00 – Niels: What led to John W. Henry eventually dissolving his firm, and what have leading CTAs today, who have been around since then, done right to still be successful?29:02 – Moritz: How many markets in a trading system are too many?42:06 – Niels to Moritz: How do you really benefit from correlation-based position sizing?49:35 – Mark to hosts: How do you utilise momentum ranking in your portfolios?55:45 – Niels: Where do you think returns dispersion among CTAs stems is stemming from?57:21 – Moritz: What can be done better, in terms of selling a strategy to potential clients?01:10:16 – Niels: How do you get so many ideas for content for your blog?1:12:32 – Niels: Do you have specific times of the day to do your writing?1:13:55 – Moritz: Why is the concept of convexity so popular nowadays?01:18:06 – Niels: What is the best downside protection, in your opinion?01:23:05 – Benchmark performance updateCopyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

Today we are very lucky to welcome Larry McDonald as our guest. Larry is the founder of the Bear Traps report, and has extensive experience in consulting and investment banking. His bestselling book “A colossal failure of common sense”, described his time as a Vice President at Lehman brothers where Larry had a ringside view of the last financial crisis. Needless to say this gives him an interesting perspective on the current state of the global markets. Our very enjoyable conversation covered a wide range of topics from high level macro, across Silver and Copper, and down to individual stocks like Tesla.-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERETopics Discussed in this Episode:Risk IndicatorsUnemployment Modern Monetary Theory US Dollar InequalityInflationGold and Silver2020 ElectionTeslaWarren Buffet Fed balance sheet -----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Follow Moritz on Twitter.Follow Larry on Twitter.Copyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

Todays’ guest is Erik Townsend, host of the Macro voices podcast. Erik has an unusual background, as he had a very successful career as a technology entrepreneur before turning his hand to commodity trading. His background gives him a different perspective to many in the financial world, as we discovered in our conversation. Our discussion explored the possible consequences of the action taken by central banks in the last and current crisis; including rampant inflation, social unrest, and the overthrow of the dollar as the worlds reserve currency. As Erik said towards the end of our conversation “Put your seatbelt on, there could be some rough turbulence ahead”!-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERETopics Discussed in this EpisodeMMTInflation outlook & inflation hedgingQEChina & RussiaCivil unrest & revolutionDigital global reserve currencyCoronavirus-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Follow Moritz on Twitter.Follow Erik on Twitter.Copyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer

Today, Robert Carver joins us to discuss JP Morgan’s comments on markets being fabricated by central bank liquidity, Tesla’s incredible swings in market cap, thoughts on Warren Buffett’s recent ‘value’ purchase, the point at which diversification in a portfolio becomes dilution, and the benefits of diversifying among different Trend Following managers.-----50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE-----Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfolio” here.Learn more about the Trend Barometer here.Send your questions to info@toptradersunplugged.comAnd please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.Follow Rob on Twitter.Episode TimeStamps:00:00 – Intro00:45 – Check out the first 2 recent episodes of our Global Macro series01:58 – Macro recap from Niels03:18 – Weekly review of performance11:44 – Thoughts on Warren Buffett’s recent ‘value’ purchase of the Dominion Energy’s natural gas pipelines & current Apple position14:59 – Discussion on Mark Zepczynski’s article on being over-diversified31:05 – Thoughts on AQR article regarding Tail Risk hedging34:48 – Benchmark performance update35:41 – Check out Rob Carver’s recent article on his blogCopyright © 2024 – CMC AG – All Rights Reserved----PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:1. eBooks that cover key topics that you need to know about In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here2. Daily Trend Barometer and Market Score One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here3. Other Resources that can help youAnd if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click HerePrivacy PolicyDisclaimer