Aggregator listings for prediction-market sign-up offers tend to advertise a single stacked headline number, adding bonuses across platforms into one figure. It makes for a clean headline, but it blends offers that live on separate venues, each with its own qualifying step, and it rarely flags which pieces are fixed and which are capped ceilings.
Measured on our four verified codes, the honest combined figure is up to $620 in new-account value: Polymarket's code TGSWC pays a $50 trading bonus on a $20 deposit, Kalshi's code FADE pays up to $500 after a $25 trade, ProphetX's code VAULT pays $20 after a $10 trade, and Novig's code VAULT credits $50 in Novig Coins after a $5 spend. Those are the offers this site verifies, on the venues whose college football prices we reprice daily.
Why the combined number needs two caveats
The first caveat is structural: the four offers sit on four different platforms, so reaching the full total means opening four accounts and meeting four separate qualifying steps, not claiming one bonus. The second is that the Kalshi piece is randomized. After a $25 trade with code FADE, the credited reward lands somewhere between $15 and $500, so $500 is the top of the range rather than an expected payout, and most stacks come in below $620.
That is the difference between a marketing total and a usable one. Read as a ceiling with its caveats attached, the combined value across our four codes still leads the field, and each piece applies where it matters for college football trading. Our full breakdown, ranked by headline offer and by what actually clears, is on the best prediction market promo codes page.
