The Death of Mean Reversion: A Comprehensive Empirical Study of 25 Technical Indicators Across 250 U.S. Equities

Authors: TradeAlerts AI Research
Date: April 3, 2026
Version: 1.0

Abstract

We present the largest retail-accessible empirical study of technical indicator efficacy, testing 25 widely-used indicators and 45 combination strategies across 250 U.S. equities over a 12-month period (April 2025 – April 2026). Our dataset encompasses over 100,000 individual signals evaluated at five forward-return horizons (1, 3, 5, 10, and 20 trading days). The results challenge several foundational assumptions of retail technical analysis: classical mean-reversion oscillators — including the Relative Strength Index (RSI-14), Stochastic Oscillator, Commodity Channel Index (CCI), and Williams %R — consistently produce negative expected returns when traded as standalone signals, with 5-day win rates ranging from 33% to 44%. In contrast, momentum and trend-following indicators, particularly Donchian Channel breakouts (57.7% WR, n=7,797), demonstrate statistically significant edge. Most critically, we identify volume confirmation as the single most powerful signal modifier: combining any trend indicator with a volume threshold (>1.5× 20-day average) elevates win rates by 10–15 percentage points, with the Donchian + Volume combination achieving a 73.2% win rate across 2,165 signals. These findings have direct implications for retail trading system design and suggest that the textbook approach to technical analysis taught in most educational resources is fundamentally flawed.

Keywords: technical analysis, backtesting, momentum, mean reversion, volume analysis, Donchian channels, RSI, Bollinger Bands, market microstructure

1. Introduction

1.1 Background

Technical analysis remains the primary decision-making framework for retail traders, with surveys indicating that over 80% of active retail participants rely on at least one technical indicator for entry and exit timing (Menkhoff, 2010). The most commonly cited indicators in retail education — RSI, MACD, Stochastic Oscillator, and Bollinger Bands — form the backbone of introductory trading courses, YouTube tutorials, and fintech platform default configurations.

Despite this widespread adoption, rigorous empirical testing of these indicators at the individual-signal level remains sparse in accessible literature. Academic studies have largely focused on aggregate portfolio returns (Brock et al., 1992; Lo et al., 2000) rather than the signal-level win rates and expected returns that matter most to active traders making discrete entry/exit decisions.

1.2 Research Questions

This study addresses three primary questions:

  1. Which individual technical indicators produce statistically significant directional signals in current market conditions?
  2. Does combining multiple indicators (confluence trading) improve signal quality, and if so, which combinations are optimal?
  3. What role does volume play in signal confirmation, and can volume filtering transform marginal signals into tradeable edges?

1.3 Contribution

Our study contributes to the literature in three ways:

  • We test 25 indicators simultaneously across 250 tickers, providing the largest cross-sectional comparison available in accessible format
  • We evaluate 45 combination strategies, systematically testing the "confluence" hypothesis popular in retail trading education
  • We identify volume confirmation as a dominant signal modifier, quantifying its impact with statistical rigor

2. Methodology

2.1 Data

Universe: 250 U.S. equities selected by options flow activity from the Unusual Whales flow database, representing the most actively-traded names by institutional options participants. The universe includes mega-cap technology (AAPL, MSFT, NVDA, GOOGL, META, AMZN, TSLA), major ETFs (SPY, QQQ, IWM, DIA, XLE, XLF), mid-cap growth (PLTR, COIN, SOFI, HOOD, MSTR, IONQ), and traditional sectors (BA, GS, JPM, UNH, LLY, HD).

Period: April 1, 2025 – April 1, 2026 (252 trading days)

Data Source: Yahoo Finance daily OHLCV, validated against Alpaca Markets data for the top 20 tickers

Forward Return Horizons: 1, 3, 5, 10, and 20 trading days from signal generation

2.2 Indicators Tested

We implemented 25 indicators spanning five categories:

Trend-Following (8)

  1. Donchian Channel Breakout (20-period)
  2. Supertrend (period=10, multiplier=3)
  3. SMA 20/50 Crossover
  4. SMA 50/200 Crossover
  5. EMA 9/21 Crossover
  6. Hull Moving Average (9-period)
  7. Parabolic SAR
  8. Aroon Oscillator (25-period)

Oscillators / Mean-Reversion (7)

  1. RSI-14
  2. RSI-7
  3. Stochastic %K/%D (14,3)
  4. CCI-20
  5. Williams %R (14-period)
  6. Money Flow Index (14-period)
  7. Rate of Change (12-period)

Volatility-Based (4)

  1. Bollinger Band Touch
  2. Bollinger Band Squeeze
  3. Bollinger Band Mean Reversion
  4. Keltner Channel

Volume-Based (3)

  1. On-Balance Volume (OBV)
  2. Volume Spike (2×)
  3. VWAP Cross

Momentum (3)

  1. MACD Crossover (12,26,9)
  2. MACD Histogram Reversal
  3. ADX + DI Crossover (14-period)

2.3 Signal Definition

Each indicator generates discrete entry signals:

  • Buy signal (+1): Indicator transitions from non-bullish to bullish state
  • Sell signal (-1): Indicator transitions from non-bearish to bearish state
  • Deduplication: Signals within 3 bars of a previous identical signal are suppressed

2.4 Combination Strategy Design

For combination (confluence) strategies, we define 14 continuous indicator states rather than discrete signals:

State Definition Value
Donchian Above 20d high = +1, below 20d low = -1, else maintain ±1
EMA_trend EMA9 > EMA21 = +1, else -1 ±1
MACD_momentum MACD histogram rising = +1, falling = -1 ±1
RSI_momentum RSI > 50 = +1, else -1 ±1
Volume_confirm Volume > 1.5× 20-day avg = +1, else 0 0/1

2.5 Performance Metrics

For each signal, we measure:

  • Win Rate (WR): Percentage of signals producing positive forward returns
  • Average Return: Mean percentage return across all signals at each horizon
  • Median Return: Median percentage return (robust to outliers)
  • Sharpe-like ratio: Mean return / standard deviation of returns

2.6 Statistical Significance

With sample sizes ranging from 85 to 16,226 signals per indicator, we apply the following significance threshold: a signal is considered to have genuine predictive power if its 5-day win rate deviates from 50% by more than 2 standard errors.

SE = √[p(1-p)/n]

For n=1,000 and p=0.50, SE ≈ 1.58%, meaning win rates outside [46.8%, 53.2%] are significant at the 95% level.

3. Results

3.1 Individual Indicator Performance

Table 1: Individual Indicator Results, Ranked by 5-Day Win Rate (n=250 tickers)

Rank Indicator Category 5d WR% 5d Avg% 10d WR% 20d Avg% Signals Sig?
1 Donchian 20 Trend 57.7 +0.294 64.7 +2.089 7,797 ***
2 Hull MA 9 Trend 54.5 +0.043 38.2 +0.092 16,226 ***
3 RSI 7 Oscillator 54.1 +0.039 45.4 -0.850 6,526 ***
15 RSI 14 Oscillator 44.1 -0.520 37.0 -1.914 3,828 ***
19 Williams %R Oscillator 42.1 -0.560 40.7 -0.721 8,239 ***
20 Stochastic K/D Oscillator 38.5 -0.430 32.6 -1.526 7,811 ***
22 MACD Cross Momentum
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Disclaimer: This research is for educational and informational purposes only. This is NOT financial advice. Trading involves significant risk. Past performance does not guarantee future results.