98s

PokerStars - $0.05 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

MP: 103.8 BB (VPIP: 12.50, PFR: 12.50, 3Bet Preflop: 0.00, Hands: 8)
CO: 238.6 BB (VPIP: 41.79, PFR: 28.36, 3Bet Preflop: 3.70, Hands: 70)
Hero (BTN): 101.6 BB
SB: 145.8 BB (VPIP: 50.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 2)
BB: 100 BB
UTG: 100 BB (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: -, Hands: 2)

SB posts SB 0.4 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has 8♠ 9♠

fold, fold, CO raises to 3 BB, Hero calls 3 BB, fold, fold

Flop: (7.4 BB, 2 players) 7♦ 5♦ 6♦
CO bets 4 BB, Hero raises to 16 BB, CO raises to 40 BB, Hero raises to 98.6 BB and is all-in, CO calls 58.6 BB

Turn: (204.6 BB, 2 players) 7♠

River: (204.6 BB, 2 players) 7♥

Do I have a stack off here?
When I played this hand I was pretty sure I did. But then I looked to equilab and... it doesn't look so sweet.

Stół: 7♦6♦5♦
       Equity  Wygrana  Podział
MP2    26.64%   25.84%    0.80% { 9s8s }
MP3    73.36%   72.56%    0.80% { 77-55, AdAh, AdAs, AdAc, KdKh, KdKs, KdKc, AdKd, AdQd, KdQd, AdJd, KdJd, QdJd, AdTd, KdTd, QdTd, JdTd, Ad9d, Kd9d, Qd9d, Jd9d, Td9d, Ad8d, 9d8d, Ad7d, Ad6d, Ad5d, Ad4d, Ad3d, Ad2d }