Institutional investors accounted for 72% of Wintermute's spot over-the-counter flow in the first half of 2026, the highest share on record, according to new data from the market maker. The figure marks a steady climb from 61% in the second half of 2025 and 59% in the first half of 2024, and it points to a structural shift in how capital moves through crypto markets: broad, everything-rallies altseasons are giving way to narrower rotations concentrated in a shrinking pool of tokens.
The data also shows a widening gap in how institutional and retail traders behave. Between the first half of 2024 and the first half of 2026, the number of unique tokens traded by institutional counterparties grew just 24%, compared to 76% growth among retail clients. Institutional interest in a given token surge also fades fast — activity typically drops off after about one day — while retail engagement tends to stay elevated for roughly three days.
Capital Concentration Deepens
The shift toward fewer winners shows up in market-cap concentration data as well. The ten largest non-stablecoin altcoins now account for roughly 80.5% of total non-Bitcoin, non-stablecoin market capitalization. Separate data from Kaiko, dated July 2025, found the same top-ten cohort represented 63% of altcoin trading volume, up from 50% just months earlier — evidence that liquidity and attention have been consolidating around a small set of established names rather than spreading across the broader altcoin market.
CryptoQuant CEO Ki Young Ju described the shift bluntly, saying the “traditional rotation of Bitcoin profits into smaller crypto assets” had “basically disappeared.” That rotation was long considered the defining mechanic of altseason: profits taken on Bitcoin would cascade into Ether, then into large-cap alts, then eventually into smaller and more speculative tokens. Wintermute's data suggests that cascade is breaking down well before it reaches the long tail.
Why Institutions Are Staying Narrow
DWF Labs managing partner Andrei Grachev offered an explanation for the pattern, arguing that institutional focus remains concentrated on Bitcoin, Ether, and tokenized real-world assets, while too many altcoins are left competing for a limited pool of capital. That dynamic makes it harder for any single token outside the established leaders to attract the kind of sustained institutional flow that powered broad-based rallies in previous cycles.
For traders positioning for the next up-cycle, the implication is that a rising tide may no longer lift all boats. Instead of a broad altseason where dozens of tokens post outsized gains together, Wintermute's data points toward a market where a smaller set of large-cap altcoins captures the bulk of institutional flow, leaving the rest of the market more dependent on retail demand that fades faster and moves less capital.
