The large-cap S&P 500 and Russell 1,000 are both now up more than 10% since the summer low made on August 5th. They're also trading back to new all-time highs today.

Within the Russell 1,000, the average stock in the index is up 10% as well, meaning breadth has been strong.This is different from what we saw in the first half of the year when the mega-caps pretty much drove all of the market's gains.

We've seen some pretty massive moves higher in individual stocks since August 5th.There are 137 stocks in the Russell 1,000 up more than 20% since then (just 32 trading days), and there are 21 stocks up more than 40%.Below is a list of those 40%+ gainers.

As shown, buy-now-pay-later stock Affirm (AFRM) is up the most since 8/5 with a gain of nearly 88%.App-maker AppLovin (APP) is up the second-most at +83.8%.

Language-learning app Duolingo (DUOL), online real estate search site Zillow (ZG), and fast-casual Mediterranean menu company Cava (CAVA) round out the top five with gains of more than 56%.

Other notables on the list of big winners recently include Palantir (PLTR) with a gain of 53%, Five Below (FIVE) at +45.4%, SharkNinja (SN) at 44.9%, and RH at 41.1%.

While more than 87% of stocks in the Russell 1,000 are up since 8/5, there are 123 stocks that are in the red, including the 26 listed below that are down more than 10%.

Trump Media (DJT) is the Russell 1,000 stock down the most since 8/5 with a drop of 44.7%.Wolfspeed (WOLF), elf Beauty (ELF), New Fortress (NFE), and Dollar General (DG) round out the list of the five biggest losers, and other notable names on the list include Dollar Tree (DLTR), Sirius (SIRI), Celsius (CELH), Moderna (MRNA), Walgreens Boots (WBA), Ally Financial (ALLY), and Birkenstock (BIRK).

Below is a look at the average performance of Russell 1,000 stocks since 8/5 broken out by sector.Four sectors have seen average gains in a tight range between 12.3-12.8%: Real Estate, Technology, Financials, and Consumer Discretionary.On the weaker side, the average Energy stock is up just 3.1% since 8/5.

Below is a look at the average year-over-year percentage change of Russell 1,000 stocks by sector.Over the last year (since 9/19/23), the average Russell 1,000 stock is up 23.8%, but stocks in the Financials sector have done by far the best with an average gain of 34.5%.Notably, the AI-heavy Technology sector ranks third behind Financials and Industrials. Energy stocks, on the other hand, are only up an average of 1.9% YoY.

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