Holding MOS.

You are a Mosaic holder the moment MOS lands in a wallet you control. There is nothing to stake, lock, register or approve.

What counts.

• MOS on Solana in an ordinary wallet, including Token-2022 token accounts created for you by an exchange withdrawal or a swap.
• rhMOS on Robinhood Chain in a wallet that has been linked to a Solana wallet. Linking combines both balances into one holder. See Solana and Robinhood.

What does not count: MOS held inside liquidity pools, the bridge custody account, protocol-owned wallets, and other program-controlled accounts. Only MOS that a holder can move counts as held.

Time-weighted balances.

Each draw covers a window of time, usually one to three days. Your weight in that draw is your time-weighted average balance across the window, not a snapshot at one instant.

In practice this means:

• Holding 1,000 MOS for the whole window counts as 1,000.
• Buying 1,000 MOS halfway through the window counts as roughly 500 for that draw, and 1,000 for the next.
• Selling before the window ends reduces your weight in proportion to the time you were out.

Balances are read from finalized chain history, so a transfer only counts once the network has finalized it. Buying right before a draw closes and selling right after gains almost nothing.

Your share.

Your share of a draw is your weight divided by the total weight of all eligible holders. That same share sets both your guaranteed base dividend and your odds in the jackpot and runner-up draws. The portfolio page on the site shows your exact share of the last settled draw and your current MOS across chains.

Minimums and dust.

There is no minimum holding to be eligible. Very small shares can still produce dividends that are below the smallest deliverable unit of an asset, or below what the conversion venue will fill. Those amounts are not lost: they are carried within the reward accounting and delivered once they are large enough to move.