date_trunc('month', block_timestamp) as date,

sum(bal_delta) as "Balance Change",

sum("Balance Change") over (order by date) as "Maker Locked"

FROM ethereum.core.ez_balance_deltas

WHERE contract_address = '0xa618e54de493ec29432ebd2ca7f14efbf6ac17f7' --erc20 minted as IOU

GROUP BY 1

ORDER BY 1 DESC