Cash Shot Clock™

Runway asks how long until you stop. A shot clock asks how long until you move.

Runway is borrowed from aviation and venture decks, and it is a passive word. You watch it get shorter and you hope.

A shot clock is a rule. It does not ask whether you feel ready, it does not care what your plan is, and when it hits zero the ball stops being yours. It exists for one reason: to make you take the shot.

That is why we do not call this runway. Runway is usually calculated off operating expenses, which is why it never sees the loan payment, the owner draw, or the truck. It is a survival estimate you watch. The Cash Shot Clock™ is the net movement of real cash through a real bank account, and it is a constraint you play against.

Here is the whole thing with numbers on it. $120,000 sitting in the bank. $40,000 a month leaving on net. That is a 90-day clock.

A 90-day clock means you do not fund bets that pay off in 120 days.

Read what that sentence just did. It did not describe your position. It ruled out a decision you were about to make. That is the only thing a number on this site is ever asked to do.

The formula, and the word doing the most work in it

Days Remaining = Cash on Hand ÷ (Average Monthly Net Cash Change ÷ 30)

The word is net. Net cash change is bank truth: every debit and every credit that moved through the account. Not operating expenses. Everything.

That distinction is where founders get ambushed, so here it is with numbers on it.

You have a truck loan. The payment is $9,000 a month, and $400 of it is interest. Your profit and loss statement reports $400. Your bank account is down $9,000. The other $8,600 is principal, and principal is not an expense, so the income statement is under no obligation to mention it. Over a year that is $103,200 that left your business and never appeared on the report you use to judge your business.

Now add owner draws, the equipment you bought outright, and the tax payment. Same story every time. Money gone, report silent.

None of this is an accounting error. The P&L is doing the job it was built for, which is grading the machine: how much of every revenue dollar you keep. We call it the Performance Report for that reason, because that is all it does, and it does it well. It was simply never a bank statement. A reporting convention nobody has revisited in 100 years is why founders keep getting blindsided by a number their own financials technically contained, and we walked through all of it in why is my business profitable but I have no cash.

The clock reads the bank. That is the whole difference, and it is why your P&L and your clock can disagree in the same week and both be right.

The bands, and what each one lets you commit to

These are our bands. They come off 18 years and more than 1,000 sets of books, which is the only reason we can publish a table like this at all.

Days remaining	Reading	What it lets you commit to
Under 30 days	Emergency. This is the only number that matters this week.	Nothing that does not move cash this week.
30 to 90 days	Tight. The quarter is critical. Prefer moves that change cash quickly.	Only bets that return cash inside the quarter.
90 to 180 days	Healthy, not strong. Room to make real moves, with the clock still worth watching.	A real move, if it pays back faster than the clock runs out.
180 to 365 days	Strong. A better position than most companies carry.	A bet with a genuine payback period, and the room to be wrong once.
Over 365 days	The constraint is almost certainly not cash.	Stop optimizing cash. Go find the actual choke point.

A band is a reading, not a verdict. 200 days on a business about to lose its largest customer is not strong. 45 days on a business with a signed deposit landing Friday is not an emergency. The band tells you which conversation to have this month. It does not tell you how that conversation ends.

One row earns a defense, because it is the row founders argue with. Healthy, not strong. At 90 days most founders stop worrying, and we refuse the comfortable word on purpose. 90 days is one bad quarter away from 30 days, and 30 days is the row where nothing else on your calendar matters. Healthy means you have room to move. It does not mean you have room to be wrong.

This is the first number on the SPOT Dashboard™, and in most weeks it is the only one that changes a decision.

A trend cannot make payroll

Direction is the most reassuring line on a cash report and the least binding. The clock has 2 floors that ignore it entirely, and both of them beat the trend.

The zero floor. A balance at or below zero is zero days, full stop. No average, no direction, no argument.

The fragility floor. A balance that cannot cover 30 days of average monthly outflow is an emergency even while cash is climbing, because one bad month ends it.

Every founder who has been surprised by a payroll was looking at a trend when the floor was the thing in the room.

The clock cannot tell whose money it is counting

Cash moves in 3 directions, and we name them: building, steady, burning. Only burning produces a day count, because only burning has an end date. Building is the good case, and the right response to it is to use the room deliberately rather than to relax.

Then the honest follow-up, which almost nobody asks. Where did the money come from?

Cash building while profit stays thin usually means outside money. A customer deposit, a loan, or the owner's own pocket. All 3 land in the same account, and the clock counts a borrowed dollar exactly the way it counts a dollar you earned. It cannot tell the difference. That is not a flaw in the measure. It is the limit of it, and you are the one who has to hold that limit in your head.

Outside money adds time to the clock. It does not stop the clock. Deposits get earned or refunded, loans get repaid, and owner cash runs out. A deposit is the best of the 3 by a wide margin and it is still not yours until you have done the work.

Which is how the healthiest looking reading we see and the most fragile business we see are sometimes the same 200 days.

A short window is not a conservative choice, it is a noisier one

Use completed months, and use as many of them as your history allows. The month you are standing in is not a month yet.

Founders reach for the last 60 days because recent feels careful. It is not. One customer paying an $80,000 invoice 3 weeks late, or one payable you pushed on purpose, will distort a 2-month average badly enough to move you 2 bands. You then commit real money against a number that describes a single event.

A constraint you can move by paying one bill late is not a constraint. It is a mood.

The clock tells you how long. The cycle tells you why.

The clock is a deadline. It does not know why your cash is where it is, and it was never built to.

When the reading comes back short, the reason is almost always sitting in the cash conversion cycle, the stretch between your dollar leaving and your dollar coming home. AR days and deposits are where most businesses find those days fastest, and the full set of moves is on the 10 levers.

Run your own number first. The Cash Shot Clock™ tool does the arithmetic off figures you can read straight off a bank statement, and it takes a few minutes.

Which lever to pull when your clock reads 60 days is a different question, and no table answers it. It depends on your margins, your cycle, and what your customers and vendors will actually accept. That is a reading of one business, and it is where a CFO Huddle™ starts.