The normal trading volume isn't really the key. Rather, it's how elastic the price is.
Suppose these guys sell 10% of the daily trading volume. How do the traders in the market react? One possibility: Buy at current prices. Another: Speculate that there'll be more sales and the price will drop by a couple of per cent in the coming days/weeks, and delay their buying in order to buy the dip.
I'm sure the Americans have laid plans for how to avoid a major Oops.
Maybe I misunderstand, but that sounds as if you're saying that Treasuries have low risk and middling yield. Is that what you mean? (Half the G20 countries currently have <4% yield on ten-year bonds, the other half more.)
Suppose these guys sell 10% of the daily trading volume. How do the traders in the market react? One possibility: Buy at current prices. Another: Speculate that there'll be more sales and the price will drop by a couple of per cent in the coming days/weeks, and delay their buying in order to buy the dip.
I'm sure the Americans have laid plans for how to avoid a major Oops.