The UK Starstreak [0] missile seems to be trying for a compromise with a combination of relatively high speed (Mach 4.0) kinetic tungsten penetrator with a very small (again, relatively) 450g high explosive charge. It's an odd looking thing, because the sub-munitions aren't faired over at launch so you get this normal looking tube shaped missile with three tiny missiles stuck on the front. It seems they rely on proximity fuzing with time delay, so once the penetrator has breached the aircraft skin, causing a reasonable amount of damage, it waits until it knows its inside and then detonates for maximum effect. I guess three of the penetrators hitting your plane at M4.0 within a ~1.5m group is enough to make you have a very bad day, even if the explosive warheads turn out to be all duds!

0. https://en.wikipedia.org/wiki/Starstreak