When is a breakout informative? Market conditions and technical signals

This is the authors' abstract. We don't add key points for this paper.

The profitability of the breakout trading strategy is typically assessed unconditionally by averaging performance across heterogeneous market conditions. We show that this average is incomplete. In a universe of 1284 historical S&P 500 constituents (1995–2026), the breakout composite exhibits significant exposure to the momentum factor, while its factor-adjusted alpha is indistinguishable from zero. The informational content of a breakout signal depends on the prevailing market condition: when the VIX is low, breakout stocks outperform comparable non-breakout stocks by 1.13 percentage points over six months ( t = 2.47 ), while when the VIX is high, this difference is negative at all four horizons we examine. A two-phase screen of thirteen candidate filters, validated out of sample, retains five filters. Our contribution is a map of when a price-breakout signal is informative. The unconditional result does not capture the signal’s information because it collapses favorable and adverse market conditions that offset one another into a single number.