Has the opening range breakout actually worked on $TLN? Over the last two years we backtested 957 opening range trades on Talen Energy Corporation Common Stock, covering the 5, 15 and 30-minute ranges, long and short. The full record is below, winners and losers both.
TLN opening range breakout win rates
| Opening range | Direction | Win rate | Trades | Expectancy (pts) | Avg win (pts) | Avg loss (pts) |
|---|---|---|---|---|---|---|
| 5-minute | Long | 54% | 154 | 0.30 | 4.06 | -4.11 |
| 5-minute | Short | 52% | 172 | 0.39 | 4.40 | -4.01 |
| 15-minute | Long | 49% | 157 | -0.25 | 4.70 | -5.01 |
| 15-minute | Short | 51% | 158 | 0.03 | 5.23 | -5.30 |
| 30-minute | Long | 52% | 157 | -0.46 | 3.92 | -5.13 |
| 30-minute | Short | 44% | 159 | -0.48 | 5.10 | -4.87 |
How to read the TLN numbers
The strongest configuration was the 5-minute long break: 54% winners across 154 trades. The long side carried the edge overall: 52% winners versus 49% for the other direction. After wins and losses netted out, 3 of the 6 configurations carried positive expectancy per trade.
Backtest method
Entry is the break of the opening range: above the range high for longs, below the range low for shorts. The target projects one full range width from the break and the stop sits at the opposite side of the range, so risk and reward are both defined by the range itself. The window is the last 730 calendar days ending August 7, 2026, every qualifying trade counted, with no commissions or slippage modeled.
This is a historical record, not a prediction. Win rates drift as volatility regimes change, and a strong two-year record on $TLN does not guarantee the next break follows it. Use it as context for sizing and expectations, not as a signal.
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