select symbol, token,token_contract,source, min(price_usd) as mi ,max(price_usd) as ma,
100*(ma-mi)/mi as rat from near.core.fact_prices
where 1=1
-- and symbol = 'TUSD'
and timestamp > current_date - interval ' 1 months'
group by symbol,token,token_contract,source
having rat < 20
-- stablecoins
-- 1.