The stock that loses most often and still ranks as a top performer is DHR

Danaher, ticker DHR, wins 28.57 percent of its trades under MACD signal cross, 14 trades over ten years, and it is still one of the top five tickers in its sector for that study. Its Sharpe ratio for that run is 0.2144, an unremarkable number. Its Sortino ratio for the same 14 trades is 1.5942, more than seven times higher. Same ticker, same trades, same window, two risk-adjusted metrics that disagree by 7.4 times about how good the result actually is.

Sharpe ratio divides a strategy's return by the total swing in its results, up moves and down moves both counted as risk. Sortino ratio divides the same return by only the downside swings, the moves that actually hurt. Neither figure has appeared in a Tenachine guide before this one. When most of a ticker's volatility comes from a handful of large winning trades rather than losses, Sharpe penalizes that ticker for swinging around a lot, and Sortino does not, because upside swings are not what Sortino counts.

The win rate underneath every one of these results

Look at how DHR actually wins in these seven runs and the pattern behind the Sharpe-Sortino gap becomes visible. Under golden cross it wins 25.0 percent of trades. Under inside bar breakout, 31.43 percent. Under MACD signal cross, 28.57 percent. Under turtle 55 breakout, 33.33 percent. Under MA crossover 20/50, 38.46 percent. Under three weeks tight, 42.42 percent. Only under Keltner channel breakout does it clear half, at 52.38 percent, and that is also the one result with the smallest Sortino to Sharpe gap on this list, 1.55 times. Six of the seven qualifying results have DHR losing more trades than it wins, and all six show the widest gaps between the two ratios.

What excludes two more results, and why

DHR shows up as a top-five ticker nine times across the 22 studies, not seven. The other two, a 186.71 percent return under 52-week high momentum and a 60.04 percent return under 52-week low reversion, both carry a 100 percent win rate on 1 and 4 trades. That is the same small-sample pattern Tenachine's guide on AMD's Williams %R result set aside before naming a winner, so both are left out of the ranking above. What is left, seven results on 8 to 105 trades each, is a real pattern rather than an artifact of one lucky run.

DHR is not a top performer everywhere. It shows up as a flop-five ticker in its sector three more times, under dual momentum 12-1, pullback to 20MA, and triple MA pullback, and all three lost money outright, Sharpe and Sortino both reading 0.0000 because there was no positive return to divide by drawdown or downside deviation. The win rates on those three losing runs, 36.36 percent, 30.93 percent, and 26.15 percent, sit in the same range as the seven winning ones. A low win rate on DHR does not by itself predict which side of the ledger a given strategy lands on. What separates the seven winners from the three losers is how large the wins were relative to the losses, not how often DHR won.

This is not a reason to trade DHR, or to prefer Sortino over Sharpe as a rule. Sortino is the more forgiving number precisely because it stops counting upside volatility as a cost, and a ticker with a genuinely large future drawdown would still show that damage in both ratios once it happened. Ten years of one ticker's history under one universe is a description of what already happened to Danaher's stock price interacting with these specific entry and exit rules, not a forecast. What this record does show is that a single win rate figure, read alone, would put all ten of DHR's runs, winners and losers, in the same low bucket. Reading the win rate next to which risk-adjusted ratio actually pays out is what tells the seven apart from the three.