Follow-on Investment
Also known as Follow-On Investment, Follow On Investment, Follow-on, Reserve Investment
A follow-on investment is additional capital deployed by an existing investor into a subsequent priced round of a portfolio company. Funds set aside follow-on reserves, often 40-60% of fund size, to defend pro-rata and double down on winners.
In depth
Follow-on investing is the discipline of deploying additional capital into existing portfolio companies, usually at the next priced round. Funds carve out reserves at the time of fund formation, disclose the reserve policy in the PPM, and then make follow-on decisions company by company over the fund's life. The reserve is the difference between the fund's total committed capital and what it puts into initial checks: a $100M fund that reserves 50% will deploy $50M into initial positions and hold $50M for follow-ons.
Two strategic modes dominate. Defensive pro-rata keeps the fund's ownership percentage flat by exercising the contractual pro-rata right in each new round. Concentration (or super pro-rata) deploys above the pro-rata right into the breakout winners, often by negotiating allocation with the lead investor or by leading an internal bridge. Concentration trades upside in one company against the opportunity cost of not following on into others, which is why the decision sits with the IC rather than with the original deal partner.
Why it matters
Follow-on decisions drive a disproportionate share of fund returns. Gompers, Gornall, Kaplan, and Strebulaev's NBER survey of 885 VCs found that post-investment value-added activities, including follow-on capital, are a major component of how VCs create value, even though VCs rate deal selection as the single most important driver. The mechanics matter to LPs as much as to GPs: a fund that loses pro-rata in its breakout companies, or that wastes reserves on flat-to-down rounds, can underperform a fund with weaker initial picks but disciplined follow-on execution.
The risk is reserve drag. Capital held for follow-ons does not earn returns until it is deployed. A fund that reserves 60% and deploys it slowly into mediocre opportunities can finish with a lower IRR than the same fund deploying initial checks more aggressively. Sapphire Ventures has argued publicly that reserves are not always net positive, and the question of optimal reserve ratio remains live across emerging-manager strategies.
Worked example
A $100M fund reserves 50% for follow-ons and writes 20 initial checks of $2.5M each at seed, targeting 10% ownership.
| Stage | Action | Outcome |
|---|---|---|
| Seed | $2.5M check at $25M post, 10% ownership | Initial position established |
| Series A | Company raises $15M at $75M post; pro-rata = $1.5M | Fund follows on, holds 10% |
| Series B | Company raises $40M at $250M post; pro-rata = $4M | Fund follows on, holds 10% |
| Series C | Company raises $100M at $800M post; pro-rata = $12.5M | Fund passes (insufficient reserves), drops to ~8.7% |
Of 20 initial positions, the fund follows on into the top 8-10. Total follow-on deployment runs $40-50M against the $50M reserve. If two of those companies exit at $5B (founder-friendly outcome), the fund returns roughly $435M on $50M of follow-on capital plus the initial seed positions, for a fund-level MOIC of 5-6x. Skipping the Series C follow-on cost meaningful percentage at exit but freed reserves for the second breakout. That trade-off is the daily work of reserve management.
Frequently asked
How much capital do VCs reserve for follow-ons?
Early-stage funds typically reserve 40-60% of total fund capital for follow-ons. The remaining 40-60% goes into initial checks. Seed funds reserve less (sometimes zero) because their check size is too small to maintain meaningful ownership through Series A; growth funds reserve more because winning rounds are larger and more concentrated.
What's the difference between pro-rata and super pro-rata?
Pro-rata follow-on maintains the investor's ownership percentage by buying their share of new dilution. Super pro-rata invests more than the contractual pro-rata right, increasing ownership in the breakout companies. Super pro-rata requires the lead investor to give up some of their target ownership, so it is negotiated case by case and is rarely guaranteed.
When should a fund pass on a follow-on?
Three common signals. First, the company has missed multiple commercial milestones and the round is being raised flat or down. Second, the valuation has run far ahead of the fund's exit math: a $500M post-money on a company with $5M ARR forces a 20x revenue exit just to hit 3x on the new check. Third, the fund has better-performing companies competing for the same reserve dollars. Sapphire Ventures and others have written that reserves are not always a good thing because they tie up capital that could earn higher returns elsewhere.
Does follow-on investment affect IRR?
Yes, in both directions. Following on into winners at flat or modest markups can boost dollar returns but compress IRR because the late capital has less time to compound. Following on at high markups can drag MOIC if the company exits at a value below the round price. The IRR-MOIC trade-off is the central tension in reserve strategy and is one reason GPs and LPs evaluate fund performance using both metrics, not one.