CTV bidding is different from display or mobile bidding in one critical way: inventory is scarce and concentrated. There are only so many premium CTV ad breaks in a day on India's top platforms, and multiple buyers are competing for the same impressions. Getting your bid strategy wrong means either paying far above market rate or not winning enough inventory to deliver the campaign. This article covers the mechanics and India-specific calibration for CTV bid strategy.
Understanding publisher floor prices in India CTV
Every publisher sets a floor price — the minimum CPM they will accept for an impression. In India CTV, floor prices vary significantly by inventory type:
- Open auction floors: Rs 40–80 CPM for standard AVOD inventory; Rs 80–150 for premium content
- PMP deal floors: Rs 120–300 CPM negotiated directly with publisher
- Live sports (IPL, international cricket): Rs 300–600+ CPM floor during event windows
- YouTube CTV (via DV360): Rs 150–350 CPM effective clearing price
Your bid must clear the floor to enter the auction. Bidding exactly at floor is not sufficient — you need a margin above floor to win against other buyers. A practical rule: bid 20–40% above the estimated floor to maintain competitive win rates.
Bid shading in first-price auctions
Most programmatic CTV auctions now run on first-price rather than second-price mechanics — the winner pays their actual bid, not the second-highest bid plus one cent. This changes bidding behaviour significantly: overbidding is costly because you pay your full bid, not a discounted clearing price.
Bid shading is an algorithmic adjustment that lowers your submitted bid toward the estimated clearing price while still winning. Most DSPs (DV360, TTD, Amazon DSP) apply bid shading automatically in first-price auctions. What you need to do:
- Enable bid shading in your DSP settings if it's not on by default
- Set a maximum CPM bid that reflects what the impression is actually worth to you — the algorithm will shade down from there
- Monitor average CPM vs. max bid: if average CPM is consistently near max bid, your max is too close to floor and shading has no room to operate
Pacing strategy for India CTV campaigns
India CTV viewing is highly time-concentrated — primetime (7pm–11pm IST) and weekend afternoons account for a disproportionate share of total CTV inventory. This creates pacing challenges:
Even pacing spreads budget equally across hours. On CTV, this results in underspend during low-inventory daytime hours (you bid but cannot win) and potential overspend during primetime (you compete harder, CPMs rise). Even pacing often leaves 20–30% of daily budget unspent.
ASAP pacing spends budget as fast as possible. For CTV, this typically exhausts budget in primetime, which is usually the right outcome — primetime is where audiences are and where ad completion rates are highest. Use ASAP pacing for CTV unless you have a specific reason to spread across dayparts.
Daypart targeting: For most India CTV campaigns, limit serving to 6pm–12am and weekend 2pm–12am. This concentrates budget where audiences actually are and avoids wasting bids during low-inventory hours.
Win rate as a campaign health signal
Track your auction win rate — the percentage of bid requests where you win the impression. Healthy CTV win rates for PMPs are 40–70%. For open auction, 10–30% is typical given more competition. Signals to watch:
- Win rate below 10% on a PMP: Your bid is too close to floor, or the deal is oversold. Raise your bid by 20–30% or contact the publisher to confirm deal health.
- Win rate above 80% on open auction: You are likely overbidding significantly. Lower max CPM until win rate drops to 20–40%.
- Win rate dropping mid-campaign: Competitor activity is increasing. Common during high-demand periods like IPL. Either raise bids or accept reduced delivery.
Frequency and its effect on bidding
CTV households are small pools — India has roughly 30–40 million active CTV households. With frequency caps, once you've hit your cap for a household you effectively stop bidding on that household's impressions. This means effective bid pools shrink over campaign flight as frequency caps are reached. Account for this in your bid strategy: if a 4-week campaign is underdelivering in week 3, it may be because frequency caps on the core audience are saturated, not because your bids are too low.