Compare credit scorecards with swap set analysis
Compare scorecards before replacing one. Drop in applications scored by the current and new scorecards to see how the portfolio moves between score bands and who swaps in or out at your cut-off.
Applications file
The file is read in this browser and never uploaded, and only band counts are sent if you request the result by email.
These 5,000 generated demo applications have outcomes, and the new score was built to rank better than the current one.
Portfolio changing band
70.7% of the portfolio changes band. At this cut-off, 8.5% swaps in and 8.2% swaps out. The approved book's bad rate goes from 4.1% under the current scorecard to 3.5% under the new one.
Swap set at cut-off
| Group | Applications | Portfolio share | Bad rate |
|---|---|---|---|
| Kept in | 3,077 | 61.5% | 3.3% |
| Swapped in | 423 | 8.5% | 5.2% |
| Swapped out | 409 | 8.2% | 10.5% |
| Kept out | 1,091 | 21.8% | 14.8% |
Outcomes exist only for applications that were approved and given time. Applications the current scorecard declined have an outcome only if the file holds one, so read the swap-in bad rate with that in mind.
Bad rate by score band
Current score band against new score band
| Current down, new across | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Total | Bad rate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 5.9% | 2.2% | 1.3% | 0.6% | 0.1% | 0.1% | 0.0% | 0.0% | 0.0% | 0.0% | 10.2% | 18.3% |
| 2 | 2.5% | 2.6% | 1.8% | 1.2% | 1.0% | 0.5% | 0.2% | 0.0% | 0.0% | 0.0% | 9.9% | 11.1% |
| 3 | 1.2% | 2.0% | 2.3% | 1.7% | 1.3% | 0.9% | 0.5% | 0.2% | 0.1% | 0.0% | 10.2% | 6.9% |
| 4 | 0.4% | 1.4% | 1.5% | 2.2% | 1.6% | 1.3% | 1.2% | 0.4% | 0.2% | 0.0% | 10.0% | 7.8% |
| 5 | 0.1% | 0.9% | 1.6% | 1.8% | 2.0% | 1.6% | 1.2% | 0.9% | 0.4% | 0.0% | 10.5% | 7.6% |
| 6 | 0.1% | 0.4% | 0.8% | 1.3% | 1.4% | 1.7% | 1.7% | 1.1% | 0.7% | 0.2% | 9.5% | 4.4% |
| 7 | 0.0% | 0.2% | 0.3% | 0.8% | 1.2% | 1.8% | 2.1% | 1.6% | 1.3% | 0.5% | 9.8% | 4.1% |
| 8 | 0.0% | 0.2% | 0.4% | 0.6% | 0.9% | 0.9% | 1.6% | 2.2% | 2.2% | 1.4% | 10.4% | 2.9% |
| 9 | 0.0% | 0.0% | 0.0% | 0.3% | 0.4% | 0.7% | 1.5% | 1.7% | 3.0% | 2.3% | 9.8% | 1.6% |
| 10 | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.1% | 0.6% | 1.5% | 2.2% | 5.3% | 9.7% | 0.2% |
| Total | 10.2% | 9.9% | 9.9% | 10.6% | 9.8% | 9.6% | 10.5% | 9.6% | 10.0% | 9.8% | 100% | |
| Bad rate | 20.7% | 10.5% | 9.3% | 7.0% | 5.1% | 3.7% | 4.6% | 1.7% | 1.6% | 0.6% |
The diagonal holds applications that kept their band. Marked cells off the diagonal change sides of the cut-off and make up the swap set.
- Kept same band
- 29.3%
- Moved one band
- 33.3%
- Moved two or more
- 37.4%
- Toward lower risk
- 35.5%
- Toward higher risk
- 35.2%
Get the result by email
Run both scorecards side by side on the same applications, keep every decision, then test the new scorecard on past applications before it replaces the current one. Start free
See the method
Score bands: Each score is sorted and cut into equal-size bands, with band 1 the riskiest and equal scores in one band. Current down, new across = Current score, 1…Bands = New score Portfolio share = Applications ÷ All applications Swapped in = At or above the cut-off under the new scorecard, below it under the current scorecard Swapped out = At or above the cut-off under the current scorecard, below it under the new scorecard Bad rate = Bad applications ÷ Known outcomes
The bands are equal-size groups from this file, not your own grades. The comparison includes only applications scored by both scorecards.
Swap set analysis for scorecards
Swap set analysis compares how a current and a new scorecard classify the same applications. The tool groups each score into equal-size score bands and shows the portfolio share in each current-to-new band combination.
At a cut-off, the swap set separates applications approved by both scorecards, only the new one, only the current one, or neither. Use the movement and bad rates, where outcomes are available, to assess what changes before testing the new scorecard on past applications.
Common questions
What is swap set analysis when replacing a scorecard?
It compares approvals under the current and new scorecards at the same cut-off. The swap set shows applications approved by only one scorecard, alongside those approved or declined by both.
What are swap-ins and swap-outs in scorecard comparison?
Swap-ins are approved only by the new scorecard at the chosen cut-off. Swap-outs are approved only by the current scorecard at that cut-off.
How do I compare a new credit scorecard with the current one?
Score the same applications with both scorecards, then compare their score bands and the swap set at a cut-off. The tool also shows bad rates when the file includes outcomes.
What does a score band migration matrix show?
It shows the current score band in each row and the new score band in each column. The diagonal shows applications that kept their band, and each cell can show the portfolio share, count, share of the current band, or bad rate.
How can I tell if a new scorecard is better?
Compare the swap-in and swap-out bad rates where outcomes are available, and compare the approved book's bad rates at the same cut-off. The tool shows these results but does not choose a scorecard.