On option expiration each month there are hundreds of thousands of puts and calls on the SPY and most of these are naked with the intent of the arb community to drive the SPY index to the ONE LEVEL where the vast majority of all put and call premiums will expire worthless and the speculators will get wiped out.
Most big firms sell NAKED puts and calls. They never buy premium outright because 90% of all puts and calls expire worthless. (That statement should raise the hackles of the options players.)
It's a suckers game created for the public.
With the arbs deep pockets they can easily force the market (raising hackles part II) to any price level they need on options expiration to ensure that all the premiums sold have become worthless.
Once every six years or so an institution has a legit sell order on the expiration and those hundreds of thousands of puts spring back to life.
What the firms sold @0.75 are now 2.00 and since they have sold a zillion of them

if they don't cover, they'll go broke.
This is what causes the crashes like in 1987 or 1998.
In the normal expiration as long as the out of the money puts and calls are reasonable like 0.30 or so , the market will regress to the mean and they will collapse to zero premium.