Following on from my previous post about downloading historical data, this post shows how previously downloaded data may be updated and appended with new, more recent data without having to re-download all the old data all over again. The main function to do this, HisPricesDates, downloads data

Replicating Anomalies is arguably a “must read” for anyone who thinks about factor investing and is looking to improve their understanding of the space. Lu Zhang, and his colleagues, Kewei Hou and Chen Xue, spent nearly 3 years carefully compiling and replicating 447 “anomalies” identified

One of us (Marcos Lopez de Prado) has been interviewed on the topic of educational training in the finance field by Institutional Investor. A brief synopsis of this interview is below. The full article is HERE. How Universities Are Failing Finance Students With investment shops fighting over

Wes recently challenged me with a unique proposition: Hey Ryan, read through this Replicating Anomalies paper and tell me what you think. Its a bit long, but I’m curious to hear your thoughts. Well, by “a bit long,” Wes really meant 144 pages of equations and reams of quantitative data on

We’re very excited for the launch of an awesome new feature for our members: Meta Strategy. We track a wide range of published tactical asset allocation strategies in near real-time (40 and counting), which members can then combine into their own custom portfolios. Our platform helps members

Note: This is not an official bet. We’re not interested in documenting all the potential details that would be involved, and we don’t have $1million to wager. Moreover, licensed firms are not allowed to make public fund recommendations, so the details of an official bet would have to be private

Are equity multifactor strategies, as implemented by exchange-traded funds (ETF), attractive? To investigate, we consider seven ETFs, all currently available (in order of decreasing assets): Goldman Sachs ActiveBeta U.S. Large Cap Equity (GSLC) – holds large U.S. stocks based on good value, strong

This post will be about pulling free data from AlphaVantage, and gauging interest for a volatility trading subscription service. So first off, ever since the yahoos at Yahoo decided to turn off their free data, the world of free daily data has been in somewhat of a dark age. Well, thanks to

When performing multiple-based valuations, which rely on the assumption that perfect substitutes should sell for the same price, it is very important to identify companies that are truly comparable. Most analysts use industry classifications. Lee et al. (2015) note that industry classifications are

Kelley Bergsma & Jitendra Tayal A version of this paper can be found here Want to read our short summaries of academic finance papers? Check out our Academic Research Insight category. What are the research questions Using data from CRSP and Compustat from 1989 to 2015 the research team

A frequent criticism of factor investing is that factor returns are stronger in small caps Our research highlights that this is not uniformly true across factors Value and Size benefit most from including small caps INTRODUCTION Factor investing can be challenged in many ways. Nearly all of the

For active strategies, investors often focus on the potential outperformance the strategy can create. Beyond the potential for outperformance, active strategies also introduce tracking error: extra volatility that comes from active decisions. While most view tracking error as a negative, if derived

In this paper I document that carry trades in commodity markets are subject to potential large and infrequent losses, that is, tail risk. Also, I show that shocks to carry trades and volatility have persistent tail-specific effects which last from four to twelve weeks ahead. The main empirical

Dr Thomas Starke is a Physics PhD who once designed microchips, worked as an engineer for Rolls Royce and lectured at University of Oxford, before applying his know-how of modelling to financial markets… As a trader, Thomas has contracted to various funds and up until recently, he was a

I was recently interviewed on Better System Trader, click here for part one of the interview, about the steps for creating a stock mean reversion strategy. I will be covering and expanding on the topics from the interview. These steps, for the most part, would apply to any strategy one is creating.

Trend-following strategies have historically been laughed at via the modern academic finance research community. Having first-hand knowledge of that community, we can verify that academic researchers are humans like the rest of us (we checked, academics aren’t robots), and they suffer from group

I spoke at the Open Data Science London conference last weekend on the topic of becoming a quant. Part of the talk was aimed at educating practising data scientists on the fact that quantitative finance firms do actually contribute to, and create, many open source projects. One such project is

What are the research questions? Based on the evidence that tweets are faster than news in revealing new market information, but that news is regarded a more reliable source of information, the authors propose a superior trading strategy based on the sentiment feedback strength between the news and

None of the factors consistently generated positive performance during recent market crashes However, almost any factor exposure would have increased the risk-return ratio of an equity-centric portfolio Low Volatility and Mean-Reversion would have been most beneficial, Momentum least INTRODUCTION A

Determining the allocations of an investment strategy is often the first step in scenario analysis, sensitivity analysis, and stress testing. For a single fund or ETF, the allocations can be found on the provider’s website or in marketing materials. However, when analyzing a larger group of funds

Here is a link to our podcast on Behind the Markets Wes and Jeremy speak with Lu Zhang, The John W. Galbreath Chair, Professor of Finance, at the Fisher College of Business at The Ohio State University, and co-author of the paper, “Replicating Anomalies.” The team dig into the 3-year research

In this paper, we study the effectiveness of carry trade strategies during and after the financial crisis using a flexible approach to modeling currency returns. We decompose the currency returns into multiplicative sign and absolute return components, which exhibit much greater predictability than

Option expiration week is often a pretty good week for the market. October is one of those months where it has been especially good over the years. This can be seen in the study below. 2017-10-16 I decided to exclude 2008 because action that week was such an incredible outlier that it greatly skewed

You are doing well at work but have always felt that need to cater to the aspiration of doing something more, building something of your own? You are passionate about the chosen field of work. You have already explored different organizations and their work processes extensively. Entrepreneurship

Academic research is amazing and incredibly useful for helping us better understand the complex world in which we live. In fact, academic research has literally rewired my brain at times. However, research isn’t perfect and the search for truth is messy. Data-mining. Overfitting. P-hacking.

Are U.S. stock and sector momentum strategies, as implemented by exchange-traded funds (ETF), attractive? To investigate, we consider five momentum-oriented U.S. equity ETFs with assets over $100 million, all currently available (in order of decreasing assets): iShares Edge MSCI USA Momentum Factor

The Most Dangerous (and Ubiquitous) Shortcut in Financial Planning John West and Amie Ko (Research Affiliates) September 2017 Using historical returns to forecast the future is one of the most common shortcuts in financial planning. Investment advisors who use only past returns to forecast future

One area in investing that is often overlooked by investors is trade execution, which relates primarily to commissions, bid-ask spreads, and price impact. Yet sometimes it is trade-execution alone that can make the difference between and profitable trade and an unprofitable one. In a new paper,

We are often asked how much of a plan’s assets should be allocated to microcap equities. As long-term investors that view the opportunity set through the lens of factors, our answer is usually some version of "probably more than you currently do." Microcap is a very challenging asset

In the quest for clarity in portfolio analytics, Professor Bill Sharpe’s introduction of returns-based style analysis was a revelation. By applying statistical techniques to reverse engineer investment strategies using historical performance data, style analysis offers a powerful, practical tool

The Kelly criterion can be used to calculate the optimal size of a trade. Specifically, it gives the size that increases the trader's account at the fastest possible rate. It is possible that a given trader might not actually want this. She might want some sort of volatility or draw down

Assume you have a bunch of different systems that trade stocks, equity index ETFs, bond ETFs, and some other alternative assets, eg commodity ETFs. All the systems take both long and short positions. What are the questions your portfolio optimization approach must answer? This is a post focused on

Title: Social Capital, Trust, and Firm Performance: The Value of Corporate Social Responsibility during the Financial Crisis Authors: Karl V. Lins, Henri Servaes, and Ane Tamayo Publication: The Journal of Finance, Vol. LXXII, No. 4, August 2017 The present financial crisis springs from a

SUMMARY Mean-reversion has not performed well over the last few years Highly sensitive to model assumptions The strategy is an attractive addition for an equity-centric portfolio INTRODUCTION According to Benjamin Franklin death and taxes are the only two certainties in life. In finance, where much

We’re often asked, “is now a good time to implement tactical strategies?” We believe there are better and worse periods for tactical, largely based upon expected risk/reward trade-offs and available diversification opportunities. For investors, we believe an equally important consideration is

Over the past decade there has been an increase in the amount of digital information that is available. In particular, there is now vasts amount of data that is available on social media platform such as twitter and Facebook that can be analysed to gain further insight and to establish sentiment

Thanks to Paul Teetor, getSymbols() can now import data from Alpha Vantage! This feature is part of the quantmod 0.4-11 release, and provides another another data source to avoid any Yahoo Finance API changes*. Alpha Vantage is a free web service that provides real-time and historical equity data.

Developer: Joseph Granville (On-Balance Volume); R. D. Donchian (Breakout Channels). Concept: Trading strategy based on price breakouts confirmed by OBV (On-Balance Volume) filters. Research Question: Can volume filters improve price breakouts? Specification: Table 1. Results: Figure 1-2. Trade

Those in the financial media have recently been writing multiple stories on a fascinating working paper, “Do Stocks Outperform Treasury Bills?” by Hendrik Bessembinder. We originally highlighted the paper on our blog in January. However, recent stories by those at the New York Times (here and

Trend prediction in financial markets is a very complex task, due to the fact that prices are inherently noisy, non-stationary, and deterministically chaotic. In recent years, studies have leveraged various machine learning algorithms to tackle this task. Leung, Chen, and Daouk (2001) used a

September 2017 Trend Following: DOWN -5.31% / YTD: -21.01% The Wisdom State of Trend Following index had a rough September, unfortunately following the trend of the last 18 months and going through the -20% mark for the year so far. With only 3 months to go, 2017 is shaping up to be a strong

Like all traders, I am always on the lookout for any new indicators better than the ones I am using. I have been using and promoting RSI2 since 2004 for mean reversion trading. I created the ConnorsRSI in 2012. Am I married to these indicators? No. If I find something ‘better’ I will drop them.

Landon Thomas Jr. recently wrote an article in the New York Times regarding our participation in the recent March for the Fallen Event. Landon’s article was well-written and provided a compelling narrative. However, much of the attention of the article was focused on Alpha Architect and my

This is the first in a two part series of articles written by Frank Smietana, an expert guest contributor to QuantStart. In this article Frank takes a look at how early-stage quantitative hedge fund managers can go about looking to secure their first institutional allocation of capital. Please be

We examine the ability of existing and new factor models to explain the comovements of G10-currency changes. Extant currency factors include the carry, volatility, value, and momentum factors. Using a new clustering technique, we find a clear two-block structure in currency comovements with the

2017 is on track for a good year for factor exposure as most factors are positive Quality, Growth, and Momentum are headed for the winners podium Value is negative across regions, giving up all of last year’s gains INTRODUCTION We present the performance of six well-known factors on an annual

Personal note: Sorry for the long delay from posting. I had a death in the family this summer, a big overseas family wedding, and I’ve been working on getting my newsletter released, which I’ll announce in a later post. Now, I’m back. I was thinking this morning that with the increasing talk

Title: VOLATILITY WISDOM OF SOCIAL MEDIA CROWDS Authors: Ahmet K. Karagozoglu and Frank J. Fabozzi Publication: Journal of Portfolio Management, Winter 2017 (version here) What are the research questions? Using raw tweets from Twitter and StockTwits (“Trader Mood Data” from PsychSignal) a

In an ideal world, all investors would outperform their benchmarks. In reality, outperformance is a zero-sum game: for one investor to outperform, another must underperform. If achieving outperformance with a certain strategy is perceived as being “easy,” enough investors will pursue that