Do you honestly believe that Wal Mart buys only for immediate delivery and never secures orders for future delivery?
Make them pay and take physical delivery,
LOL - Sure, what could go wrong with that law?
Seriously guy, you need to stop printing such nonsense until you spend some serious time in real life market study. - you sound like Nancy Pelosi.
With your idea the prices would lift like a balloon and the market pricing would be MORE unstable. - Its been tried with other commodities, but you,like most others, don’t really know that.
Also, try to remember that for every speculator (whatever that is) that wins on a futures delivery or option thereon, there is exactly one who lost that same amount on that same option.