Quant Mashup
Steady Vol & Skewerage Combination Critique [John Orford]
Recently Big 'O' Sharpe scrubbed out my Steady Vol and Skewerage strategies. I've never been sentimental. Bullet to the head. Move on. But Wait! I forgot, that I once combined both strategies together, like so, weight.INDEX_SP500 = 1 / realisedVol - skewChange; and weighted on a
- 8 years ago, 31 Aug 2015, 12:44pm -
[Academic Paper] Supply and Demand of S&P 500 Put Options [@Quantivity]
Supply and Demand of S&P 500 Put Options
- 8 years ago, 30 Aug 2015, 04:16pm -
Large Down Mornings in SPY [Godel's Market]
What has happened in the past when the SPY opens 3.5% or more down? I ran the numbers and have some code for doing it yourself. I found that there's typically a profitable day ahead, and even if not profitable, the day tends to have enough upside (Open to High) to be of great interest. Here is
- 8 years ago, 30 Aug 2015, 01:18pm -
Lazy IDE Update [John Orford]
Bar some evolutionary improvements, the Lazy Backtest IDE is now about as efficient as it is possible to be. This enables me to introduce the latest feature - Big 'O' analytics. The IDE generates multiple backtesting results in the background by changing the starting dates of backtests.
- 8 years ago, 30 Aug 2015, 01:17pm -
Best Links of the Week [Quantocracy]
The best quant mashup links for the week ending Saturday, 08/29 as voted by our readers: A New Harry Long Strategy, And Plans For Hypothesis-Driven Development [QuantStrat TradeR] Performance of Two Strategies in Momersion Regimes [Price Action Lab] Quant-Trader or Trader-Quant? [MKTSTK] Combining
- 8 years ago, 30 Aug 2015, 07:41am -
[Academic Paper] Low-Beta Investment Strategies [@Quantivity]
Low-Beta Investment Strategies
- 8 years ago, 30 Aug 2015, 04:14am -
[Academic Paper] Persistency of the Momentum Effect: The Role of Consistent Winners and Losers [@Quantivity]
Persistency of the Momentum Effect: The Role of Consistent Winners and Losers
- 8 years ago, 30 Aug 2015, 04:11am -
[Academic Paper] Principal Component Analysis of High Frequency Data [@Quantivity]
Principal Component Analysis of High Frequency Data
- 8 years ago, 29 Aug 2015, 06:22pm -
[Academic Paper] Large-Dimensional Factor Modeling Based on High-Frequency Observations [@Quantivity]
Large-Dimensional Factor Modeling Based on High-Frequency Observations
- 8 years ago, 29 Aug 2015, 06:18pm -
Introduction to Monte Carlo Analysis Part 2 [Quants Portal]
Markov Chains, Central Limit Theorem and the Metropolis-Hastings In the previous article I gave a generic overview of Monte Carlo as well as introduced importance sampling. We now dive deeper by giving strict definitions of some of the widely used and yet misunderstood or rather commonly neglected
- 8 years ago, 29 Aug 2015, 09:39am -
Multivariate volatility forecasting [Eran Raviv]
Last time we showed how to estimate a CCC and DCC volatility model. Here I describe an advancement labored by Engle and Kelly (2012) bearing the name: Dynamic equicorrelation. The idea is nice and the paper is well written. Departing where the previous post ended, once we have (say) the DCC
- 8 years ago, 29 Aug 2015, 09:38am -
Multiscale Noisy-Rational-Expectations Equilibrium [Alex Chinco]
1. Motivation Evolutionarily Slow. In modern financial markets, people simultaneously trade the exact same assets on vastly different timescales. For example, a Jegadeesh and Titman (1993)-style momentum portfolio turns over half its holdings once every 6 months. By contrast, Kirilenko, Kyle,
- 8 years ago, 29 Aug 2015, 09:38am -
Steady Vol & Big 'O' Sharpe [John Orford]
Big 'O' Sharpe changes backtest starting dates day by day until the lowest Sharpe is found. When strategies rebalance on periodic basis it turns out that such very small changes cause very large differences in results. Big 'O' Sharpe is the pessimistic grumpy brother of the
- 8 years ago, 29 Aug 2015, 09:38am -
Avoiding Stock Market Crashes with the Hi-Lo Index of the S&P500 [iMarketSignals]
This daily indicator is calculated as the ratio of the number of S&P500 stocks that have reached new 3-month-highs minus those that have reached new 3-month-lows, divided 500. Exiting and entering the stock market according the indicator’s signals would have avoided major drawdowns of the
- 8 years ago, 28 Aug 2015, 12:28pm -
Visualizing Stock Market Risk: 7/1926 to 6/2015 [Alpha Architect]
How crazy is current market action? Not that crazy. …and if you lived through 2008, definitely not that crazy. Seeing a -3%+ or a +3% observation is roughly a 1/100 event, or ~ 2.5 times a year. Obviously, return events are not independent and volatility tends to cluster, but the numbers above
- 8 years ago, 28 Aug 2015, 12:27pm -
Are Spikes Predictive? [Factor Wave]
Yesterday I looked at stock market returns in the week and month after a large daily decline and found that it is usually a good time to buy more equities. Especially because, as long-term investors, our strongly held prior is that equity markets appreciate over time. But what about spikes? Do large
- 8 years ago, 28 Aug 2015, 12:27pm -
Missing the Best and the Worst [Flirting with Models]
Numerous marketing pieces circulating around the web show the detriment that trying to time the market can have on a portfolio. These pieces often look similar to this chart, which shows the cumulative growth of $1 invested in the S&P 500 ETF (SPY) assuming that a given number of best days are
- 8 years ago, 28 Aug 2015, 10:13am -
Why Thursday’s Volume Was Disappointing For Bulls [Quantifiable Edges]
Thursday’s rally was accompanied by the lightest volume in 5 days. The relatively low volume could be worrisome for bulls. The importance of volume can be seen in the studies below. The first one looks at 2%+ SPX gains when volume comes in relatively high. 2015-08-28 image1 A week later ¾ of the
- 8 years ago, 28 Aug 2015, 10:13am -
5 Ways to Plot Returns [John Orford]
There's an infinite number of ways to plot financial time series, let's look at the main ones. The most basic way is just plonking returns on a plot. This has one very nice feature. The returns are comparable across time, which makes a lot of sense, right? A return at the beginning of our
- 8 years ago, 28 Aug 2015, 10:13am -
Introduction to Algorithmic Trading with Ernie Chan, Ph.D. [Adam H Grimes]
I tweeted a few days ago that I had big news–huge news–gigantic news about the trading course, and I do. I have been very pleased with the reception the course has gotten, and I’ve heard from many traders that it has been a pivotal piece in their development. I decided that the time has come
- 8 years ago, 27 Aug 2015, 10:51pm -
A Gap -n- Go From A 50-Day Low [Quantifiable Edges]
The study below is one that appeared in the Quantifinder yesterday afternoon. There were a few like it. This study looks at big gaps up from 50-day lows that go unfilled and close above the open. 2015-08-27 image1 The suggestion here is that the overwhelming 1-day bullishness (big gap and move
- 8 years ago, 27 Aug 2015, 10:51pm -
Extreme Moves as Market Predictors [Factor Wave]
The last week has been interesting. Not always fun but at least always interesting. Extreme moves in the market are something of a double-edged sword when it comes to learning. First, extreme moves are "special". Obviously so in terms of frequency, but also in terms of the investor
- 8 years ago, 27 Aug 2015, 12:37pm -
Plotting Time Series in R using Yahoo Finance data [Revolutions]
I recently rediscovered the Timely Portfolio post on R Financial Time Series Plotting. If you are not familiar with this gem, it is well-worth the time to stop and have a look at it now. Not only does it contain some useful examples of time series plots mixing different combinations of time series
- 8 years ago, 27 Aug 2015, 12:36pm -
Luck [John Orford]
My grandfather was a gambler. Nice. Smart. But he thought he was smarter than everybody else in the room. I haven't gambled much, as a direct consequence of what happened decades before I was born. Going to the bookies is popular in Ireland but unheard of in our family. I started playing Poker
- 8 years ago, 27 Aug 2015, 12:35pm -
RUT Strangle - High Loss Threshold - 80 DTE [DTR Trading]
This post reviews the backtest results of selling one-lot options strangles on the Russell 2000 Index (RUT), initiated at 80 days-to-expiration (DTE). The results in this post were derived from 2200 individual trades entered by the backtester. The results are grouped by the delta of the short
- 8 years ago, 27 Aug 2015, 12:34pm -
The Art of Backtesting [Cantab Capital]
Backtesting is at the heart of systematic investment. Done correctly, and it can recreate reality closely enough to identify systematic patterns which are likely to persist in the future. Patterns discovered by a robust backtest can be exploited to generate returns. But there are many subtle
- 8 years ago, 27 Aug 2015, 05:45am -
Academic Paper Analyses - Federal Open Market Committee Meeting Effect on Stocks [Quantpedia]
Authors: Nilsson Title: The Pre-FOMC Drift Explored Link: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2640477 Abstract: The pre-FOMC drift was first published in 2011 and is a strong driver of equity market performance over the last 30 years. The effect is able to explain approximately half
- 8 years ago, 27 Aug 2015, 05:42am -
Quant-Trader or Trader-Quant? [MKTSTK]
The term “quant trader” gets thrown around a lot these days. For any trader who has been in the industry for more than a decade, the adoption of the term is driven by survival. There’s a running joke in some HFT circles: these days, older traders would never get past HR using the same criteria
- 8 years ago, 26 Aug 2015, 01:15pm -
Let's talk "Year-to-Date" [Flirting with Models]
We have a pretty arbitrary practice in the financial services industry: we reset the performance clock of portfolios to zero every January. Consider this hypothetical scenario: it’s December and markets are up 20% for the year. They even got a nice 5% pop in the last month. The clock strikes
- 8 years ago, 26 Aug 2015, 10:26am -
The Trajectory of a Crash [Philosophical Economics]
It’s amazing to think that just last Monday, August 17th, the S&P 500 closed at 2102. Today, it closed at 1868, falling 11.1% in 6 trading days. The shocking speed of the decline has injected a level of fear into markets not scene since the fall of 2011, when the Eurozone debt crisis was
- 8 years ago, 26 Aug 2015, 10:25am -
Super Reliable Backtesting [John Orford]
Big 'O' is a measure of many things, with respect to backtesting it helps because results are always ambiguous. Backtesting results are almost iffy for a variety of reasons, but a salient one is the 'day bump' problem. Say, I have a strategy that trades at the 'beginning of
- 8 years ago, 26 Aug 2015, 10:25am -
I’m Back, A New Harry Long Strategy, And Plans For Hypothesis-Driven Development [QuantStrat TradeR]
I’m back. Anyone that wants to know “what happened at Graham”, I felt there was very little scaffolding/on-boarding, and Graham’s expectations/requirements changed, though I have a reference from one of the quantitative directors. In any case, moving on. Harry Long recently came out with a
- 8 years ago, 25 Aug 2015, 08:54pm -
Timing the Markets with Value and Trend [Meb Faber]
I like Five Thirty Eight. Their data driven approach certainly appeals like a quant to me. However, like many people out there, when they apply their logic to the stock market things start to go a little screwy. They posted a piece titled :”Worried About The Stock Market? Whatever You Do, Don’t
- 8 years ago, 25 Aug 2015, 08:29pm -
Impossible Trinity Of Sizing [Algo Trading 101]
What is the Impossible Trinity When we think about the number of lots to trade (position sizing), we may face an interesting situation called the Impossible Trinity of Sizing. The Impossible Trinity of Sizing is a trilemma which states that it is impossible for us to control over all 3 of the
- 8 years ago, 25 Aug 2015, 08:28pm -
Combining Value and Momentum in Stock Selection and Market Timing [Alpha Architect]
Recently, we wrote two posts about how to combine Value and Momentum for stock selection purposes (Part 1 and Part 2). We followed this piece with a post on combining value and momentum for market timing purposes. In this post, we review the use of combined Value and Momentum for both stock
- 8 years ago, 25 Aug 2015, 12:01pm -
Behavioral Analysis of Technical Analysis [Factor Wave]
I recently wrote about the link between quantitative analysis and technical analysis (deeply upsetting some people in the process). Today I'm going to write about the link between behavioral finance and technical analysis. But possibly not in the way you will be expecting. It is common for
- 8 years ago, 25 Aug 2015, 11:09am -
Autoregressive Moving Average ARMA(p, q) Models for Time Series Analysis - Part 2 [Quant Start]
In Part 1 we considered the Autoregressive model of order p, also known as the AR(p) model. We introduced it as an extension of the random walk model in an attempt to explain additional serial correlation in financial time series. Ultimately we realised that it was not sufficiently flexible to truly
- 8 years ago, 24 Aug 2015, 09:40pm -
The Cheap Volatility Illusion [Larry Swedroe]
As I write this on Aug. 10, despite all the economic problems facing investors (such as Greece, the slowing Chinese economy, a bear market in Chinese stocks, the collapse in commodity prices and Puerto Rico’s default), the VIX index, a measure of the market’s expectation of 30-day volatility,
- 8 years ago, 24 Aug 2015, 09:40pm -
Avoid Buying Put Insurance When You are Most Afraid [Alpha Architect]
A timely piece on S&P 500 put option prices. The authors find that S&P 500 put options get too expensive during wild times because of 2 effects: Demand for insurance sky rockets (investor utility demands safety) Supply for insurance becomes restricted (credit constraints cripple market
- 8 years ago, 24 Aug 2015, 12:32pm -
Atom Smashing Returns [John Orford]
My Lazy PCA analysis tool plots returns against lagged returns and then fits principal components to the data. ('SP5HBI' S&P 500 High Beta index weekly) The surprising thing is that the fitted components almost always have a slope of plus or minus one (except when there's a lack
- 8 years ago, 24 Aug 2015, 12:30pm -
What does it mean that the stock market broke a 949 day streak last Friday? [MKTSTK]
Last Friday the S&P 500 did something it hadn’t done in a very long time (949 trading days to be exact): it went down by more than 3% in a day. Nearly eight months ago we highlighted the length of this non-losing streak as it stood then at 787 trading days (the market seems to like palindromes
- 8 years ago, 24 Aug 2015, 12:27pm -
RUT Strangle - High Loss Threshold - 73 DTE [DTR Trading]
This post reviews the backtest results of selling one-lot options strangles on the Russell 2000 Index (RUT), initiated at 73 days-to-expiration (DTE). The results in this post were derived from 2312 individual trades entered by the backtester. The results are grouped by the delta of the short
- 8 years ago, 24 Aug 2015, 12:27pm -
OMXS30 Turn of the Month August [Stockdotnu]
Ahead of the upcoming Turn of the Month May/June, the statistics are always calculated after closing price and from year 1987 to 2014. This statistics applies only to Turn of the Month August/September. Last trading day of the month is -1 and the first trading day of the new month is 1. The trading
- 8 years ago, 24 Aug 2015, 12:27pm -
Best Links of the Week [Quantocracy]
The best quant mashup links for the week ending Saturday, 08/22 as voted by our readers: The Kalman Filter and Pairs Trading [MKTSTK] The Gamblers’ Fallacy [Factor Wave] Strategy Gamma Overview [John Orford] The Health of Stock Mean Reversion: Dead, Dying or Doing Just Fine [Alvarez Quant Trading]
- 8 years ago, 23 Aug 2015, 02:12am -
ORBP with Momentum Filter | Trading Strategy (Filter & Exit) [Oxford Capital]
I. Trading Strategy Developer: Toby Crabel (ORBP: Opening Range Breakout Preference). Source: Crabel, T. (1990). Day Trading with Short Term Price Patterns and Opening Range Breakout. Greenville: Traders Press, Inc. Concept: Volatility expansion with a trend filter. Research Goal: Performance
- 8 years ago, 23 Aug 2015, 02:12am -
Financial Rohrschach Plot [John Orford]
Here's a cumulative return plot of the lazy Drop the Mic trading strategy outlined yesterday. Long periods of flatlining show when the strategy is in hibernation. Just for fun, here is how the strategy weights its holding in the S&P 500 over time. How often do you see a symmetric picture
- 8 years ago, 23 Aug 2015, 02:12am -
Parallels Of Betting & Investing [Larry Swedroe]
Two of the most-well-known factors that help explain stock returns are the value effect (where equities with lower prices relative to metrics—such as book value, earnings, cash flow, sales and dividends—tend to outperform the equities with higher prices relative to those metrics), and the
- 8 years ago, 21 Aug 2015, 07:57pm -
Market Efficiency Hates Bad Weather [Alpha Architect]
Building on research in psychology, we predict that unpleasant weather negatively affects capital market participants’ moods and activity levels, causing a muted response to information events… The table below highlights that unpleasant weather seems to be correlated with slower market
- 8 years ago, 21 Aug 2015, 10:33am -
Lazy Financial Strategies [John Orford]
One of the major themes of War and Peace will resonate with all practitioners of stochastic finance. Essentially, Napoleon's nemesis, the Russian general Kutuzov, keeps dropping back before the invading French until at last he spots a weakness in the French and pounces. Tolstoy tells us that
- 8 years ago, 21 Aug 2015, 10:33am -
Moods and the Market [Factor Wave]
At the start of the week I wrote a post about the effect of weather and the markets. Leo Cheng thought (quite reasonably) that this might just be data mining. If you look at enough things, some will appear to have an influence on the market just by chance. I've done a little more reading and I
- 8 years ago, 21 Aug 2015, 10:32am -