Index investors will soon get indirect exposure to Ethereum (ETH) and Solana (SOL) through two companies joining the Russell indexes that use the cryptocurrencies in their treasury strategies.

Sharplink and Forward Industries said Tuesday that they are set to join the Russell 2000 and Russell 3000 indexes following FTSE Russell's annual rebalancing, effective upon the U.S. market opening on June 29.

Sharplink, which has held steady as the second-largest public ether treasury company behind Tom Lee's Bitmine, said the inclusion expands its "institutional visibility" and could improve "access to index-tracking capital."

The company currently holds 868,699 ETH worth nearly $1.8 billion.

Forward Industries, the top public holder of Solana with roughly $585 million in SOL, sees the inclusion as a boon to its goal of "compounding SOL-per-share."