According to @KobeissiLetter, the Russell 2000 has outperformed the S&P 500 for 10 consecutive sessions, the longest run since 1990, with small caps up 7.5% over the period versus 1.3% for large caps (source: @KobeissiLetter). This indicates a multi-decade-extreme phase of small-cap relative momentum that traders can express via long IWM versus short SPY or by overweighting small-cap exposure, while managing mean-reversion risk after a 10-day streak (source: @KobeissiLetter). For crypto-focused desks, the source documents an equity risk-on episode in small caps but provides no direct crypto data; any BTC or altcoin correlation assessment should be derived from internal models rather than assumed (source: @KobeissiLetter).

According to @BullTheoryio, the Russell 2000 set a new all-time high after the U.S. open, rising 7% in the first 15 days of 2026 and adding nearly $220 billion in market value, indicating a rotation toward higher-risk assets, source: @BullTheoryio on X, Jan 15, 2026. For traders, the source’s characterization of a risk-on rotation highlights increased appetite for high-beta exposure; crypto market participants can monitor whether liquidity and momentum spill over into digital assets under similar risk conditions, source: @BullTheoryio on X, Jan 15, 2026.

According to Lisa Abramowicz, the Russell 2000 has outperformed the S&P 500 for nine consecutive sessions, matching the longest streak since 2017 and requiring a look back to 2008 to find a longer run. Source: Lisa Abramowicz on X, Jan 15, 2026. For traders, this small-cap leadership is a key risk-appetite signal, and because crypto has shown higher correlation with U.S. equities in recent years, the rotation bears watching for BTC and ETH volatility and direction. Source: IMF blog "Crypto Prices Move More in Sync With Stocks" by Tobias Adrian and Fabio Natalucci, Jan 2022; Lisa Abramowicz on X, Jan 15, 2026.