Minecraft wiki entry for Glow_Squid, associated text: 1 to 3 glow ink sacs. The maximum amount is increased by one per level of Looting, for a maximum of 1 to 6 with Looting III.
1–3 experience points when killed by a player or tamed wolf.
As with all other baby animals, killing a baby glow squid from Bedrock Edition yields no items or experience.