You are right, they can only provide liquidity, but if they want the equity markets up, they go up.Show me were they bought stock etf's? I've read 20 times they bought bond etf's . Japans done 5 times the stimulus we've done over the last 20 yrs ,has had zero rates for 20 yrs, buys their stock mkt and the Stock mkt still down 45% from 31 yrs ago.