BlackRock’s iShares Micro-Cap ETF boosts Strive holdings by 80K shares to $3M

BlackRock’s iShares Micro-Cap ETF, ticker IWC, added 79,805 shares of Strive Inc. to its portfolio, bringing total holdings to 213,713 shares valued at roughly $3M.

Strive, which trades on Nasdaq under the ticker ASST, has built its corporate strategy around accumulating Bitcoin as a primary reserve asset. The company held over 19,864 BTC as of late June 2026, a treasury that makes it one of the more aggressive corporate Bitcoin accumulators in the micro-cap space.

What IWC actually is, and why this matters

The IWC is a passive fund. It tracks the Russell Microcap Index, holding somewhere between 1,278 and 1,385 stocks at any given time, with total assets exceeding $1.5B. BlackRock didn’t wake up one morning and decide Strive looked like a great buy. The fund’s methodology automatically includes companies that meet the index’s criteria.

Strive’s growth in market cap and trading activity has pushed it into the kind of index inclusion that funnels passive capital its way. The 80,000-share increase represents a substantial bump in exposure. At $3M in total value, it’s not going to move the needle for a $1.5B fund.

Strive’s Bitcoin accumulation strategy

Strive’s holdings grew to 13,628 BTC by the end of 2025, and the accumulation has only accelerated since then. In June alone, Strive purchased 759 BTC for approximately $50M and an additional 73 BTC for $4.7M. The company has signaled intentions to continue buying Bitcoin through mid-2026, treating the cryptocurrency as its core treasury asset.

With over 19,864 BTC now on its balance sheet, Strive sits in a growing category of public companies that have essentially turned themselves into leveraged Bitcoin vehicles. MicroStrategy, now rebranded as Strategy, pioneered this approach starting in 2020, and a cohort of smaller firms have followed suit.

What this means for investors

A $3M position inside a $1.5B fund is roughly 0.2% of assets. Passive index inclusion creates a flywheel effect: as more ETFs and index funds are forced to hold companies like Strive, the stock gets more liquidity, which means tighter spreads and potentially higher valuations. Higher valuations push the company further up the index rankings, which triggers more buying.

The risk cuts both ways. If Bitcoin enters a prolonged downturn, companies like Strive will see their balance sheets deteriorate rapidly. Index funds would then mechanically sell as the stock drops out of qualification thresholds. Investors who own IWC for broad micro-cap exposure might find themselves unexpectedly correlated to crypto volatility in ways they didn’t anticipate.

A micro-cap index is supposed to offer diversification across hundreds of small companies. When several of those companies are all variations on the same Bitcoin treasury theme, the diversification benefit erodes.