Fund
Money already spent gets no vote.
From decision to commitment
Choosing the mix produced a funded set — a list of investments the portfolio has decided to back. The decision exists, but the money has not moved. Fund is the stage that makes the decision real: it releases the money, structures how it flows, and establishes the rhythm on which the portfolio will re-examine everything. A decision without funding is an intention. Funding is the commitment.
This stage is shorter than its neighbours, but it carries a structural weight that is easy to underestimate. The way money is released — the frequency, the conditionality, the staging — is the mechanism that governs how much flexibility the portfolio retains and how quickly it can change course when what it has funded turns out to behave differently from what was expected. An organisation that releases all its money at the start of the year, in a single tranche, to every investment in the funded set, has made a full-year commitment before the year’s work has started. An organisation that releases money in short tranches, subject to review, retains the option to redirect it before the year is out.
The difference between these two is not a detail of treasury management. It is the difference between a portfolio that is re-decided on a rhythm and one that is decided annually and then simply executed.
Modes of funding
There are three basic approaches to releasing money, and most portfolios use a combination of them.
Rolling funding releases money continuously, in a regular cadence — monthly or quarterly — without a formal gate at each release. The investment is funded for the period; if nothing has changed, it is funded again for the next period without a specific review event. Rolling funding is fast, low-overhead, and appropriate for investments that are well-understood, reliably performing, and where the strategic context is stable. It is the natural funding mode for run-the-business investments: the organisation needs the lights on, and stopping to re-examine that choice every month is overhead without value.
Periodic funding releases money at the portfolio’s regular re-decision cadence — typically quarterly — following a review of the whole funded set. Each period, the investments are re-examined, the pool is re-allocated against current priorities, and funding is committed for the next period only. This is the default mode for change-the-business investments: regular enough to provide working capital, infrequent enough to make each period’s funding deliberate rather than automatic.
Gate funding releases money in stages, with a formal review and decision required before each stage can begin. The investment must demonstrate, at each gate, that it has earned the next tranche — that the assumptions it was funded on still hold, that the value it is expected to create is still credible, and that continuing is better than stopping. Gate funding is the most resource-intensive approach and is appropriate for large, long-running investments where the risk is high enough, and the options wide enough, to justify the governance overhead.
The funding mode is a choice, and it should be chosen deliberately for each investment. Rolling for what is known and stable. Periodic for the active portfolio. Gated for what is large and uncertain enough to warrant formal scrutiny at each stage.
Most portfolios use all three modes simultaneously, with different investments on different rhythms. The portfolio cadence — the regular beat at which the overall funding picture is reviewed — governs the periodic mode and sets the outer limit for rolling; it does not require every investment to have a gate event at every cycle.
Cadence: the heartbeat of the portfolio
The portfolio’s cadence is the regular rhythm on which funding is re-decided. It is one of the four dials, and it is the one with the most visible effect on how the portfolio feels to run.
A fast cadence — monthly, or even two-weekly — keeps the portfolio highly responsive and allows rapid reallocation when circumstances change. Its cost is overhead: each re-decision cycle requires some effort to run, and a frequent cadence can consume enough management attention to crowd out the actual work of managing the portfolio. Fast cadences suit Lean portfolios with a small set of investments and a high rate of change.
A slow cadence — annual, or longer — is low-overhead and stable, and it is the natural companion of the annual budget cycle in large organisations. Its cost is rigidity: a portfolio that can only re-allocate its money once a year is an organisation that is committed to the choices it made in October for the following twelve months, regardless of what the world does between January and September. In fast-moving environments, a twelve-month funding lock is not stability — it is brittleness disguised as process.
“Cadence is the portfolio’s tempo. Too slow and it cannot respond. Too fast and it never stops responding long enough to actually fund anything properly.”
Between these poles, most portfolios find a quarterly cadence serves well for the bulk of their investments: frequent enough to catch significant changes in a reasonable time, infrequent enough to give investments a settled funding horizon within each period. The cadence is set as part of the operating model — the subject of Chapter 10 — and it is one of the dials that can and should evolve as the organisation’s portfolio management capability matures.
Within the cadence, there is an important discipline: funding stays steady between re-decision points. The portfolio commits for the period and does not disrupt running investments with mid-period changes unless the change is substantial enough to justify the disruption. This creates a working stability — the people doing the work can rely on the funding for the period — while preserving the portfolio’s right to re-decide at the next cycle. Mid-period disruption is available but reserved for genuinely significant changes: a strategic shift, an investment whose performance has deteriorated materially, or a new opportunity whose value significantly exceeds what is currently running. Not for second-guessing this week what was decided last month.
Staged funding for uncertain bets: fund-to-learn
Uncertain investments — the ones flagged at the demand stage, valued as options in How We Value — require a fundamentally different funding structure. They cannot be funded in the same way as investments whose return is known and whose execution path is clear, because they are not that kind of investment.
The fund-to-learn structure releases money in tranches, each tranche funding one increment of learning, with a decision point at the end of each increment before the next tranche is released. The amount committed at each stage is the amount needed to answer the specific question that tranche is designed to answer — no more. The decision at each tranche review is not “is this on track?” but “what did we learn, and does what we learned make the next tranche worth funding?”
Fund-to-learn is not a phased delivery plan. It is a structured discovery process. Each tranche buys a piece of information; the decision to buy the next tranche is made on the basis of what the last one revealed.
The practical structure is simple. Each tranche has three elements: the learning objective (what specific question this tranche will answer), the amount (the minimum investment needed to answer it), and the decision criteria (what the answer needs to look like for the next tranche to be committed). A tranche that meets its learning objective — whether the answer is positive or negative — is a successful tranche. A tranche that fails to answer its question because it was not designed to has been mis-structured.
This structure has several important properties. First, it limits downside: the maximum loss on an uncertain bet is the sum of the tranches released before the point at which the learning made continuing obviously wrong. Second, it forces early learning: rather than designing the whole investment upfront and discovering near the end that a core assumption was wrong, the tranche structure is designed to test the most critical assumptions first, so the expensive later work only happens if the cheap early work said it should. Third, it creates legitimate stopping points: the end of each tranche is a governed moment at which not continuing is a fully acceptable and well-structured outcome — not a failure, but the correct response to a learning that said “not this, not now.”
The fund-to-learn card — one of the templates in the annexes — captures this structure for each uncertain investment: the sequence of tranches, the learning objective and decision criteria for each, and the total envelope within which all the tranches sit.
The funding and commitment sheet
Every investment in the funded set, regardless of its funding mode, is documented on a funding and commitment sheet: the record of what has been committed, in what tranches, on what conditions, and with what decision rights.
The sheet is not a project plan. It does not track milestones or deliverables (that is delivery management). It records the portfolio’s commitment: this investment receives this much money in this period, with this review date, and the portfolio’s right to re-decide at that date. For gated investments, it records the tranche structure and the gate criteria. For fund-to-learn investments, it records each learning tranche and its decision criteria.
The aggregate of the commitment sheets is the portfolio’s current allocation of the pool. The total committed must not exceed the total pool. The review dates, taken together, constitute the portfolio’s cadence — the heartbeat described above.
Fund at three settings
| Aspect | Lean | Managed | Enterprise |
|---|---|---|---|
| Funding mode | Rolling for known work; owner’s judgement on uncertain bets | Periodic funding at the quarterly cadence; gated for large or uncertain investments | Rolling for run, periodic for change, gated for transformation; fund-to-learn governed separately |
| Cadence | As often as the owner needs; can be continuous | Quarterly, with a formal review meeting | Formal cycle aligned to governance calendar; may be quarterly or semi-annual |
| Commitment sheet | A shared list of what is committed and for how long | A short structured sheet for each investment | A formal funding record, version-controlled, ratified by the governing board |
| Fund-to-learn | Owner sets the tranche size and the learning question | A standard template, reviewed at the intake gate | A governed pathway with formal tranche approvals and a learning review between tranches |
| Mid-period change | When the owner judges it necessary | When the change is material enough to bring to the board outside the normal cycle | A formal exception process with defined thresholds for what constitutes a material change |
At the Lean end, the risk is treating all funding as continuous and unconditional — releasing money to everything in the set and never structuring the re-decision moment. The portfolio then runs on the implicit assumption that the funded set is right until something obviously goes wrong, which is the same pattern as the drifted portfolio but now with a process label on it. The discipline at Lean is to keep the review moment real: to genuinely ask, at the cadence, whether each investment still earns its place.
At the Enterprise end, the risk is the opposite: so many gate events, so many approval layers, and so much documentation that the portfolio’s ability to commit quickly has been traded away for a governance architecture that moves money in geological time. The test of a well-designed funding process at any setting is not whether it has sufficient controls. It is whether it can fund the right work at the speed the organisation needs.
With funding committed — the money released, the tranches structured, the cadence established — the portfolio’s chosen mix is now running. That is when the second job of the portfolio begins in earnest: making it work together. That is Steer.