| 22 Products | May 2025 | May 2026 | Change |
| Waitrose Ltd Waitrose Frozen 2 Smoked Haddock Fillets MSC (280g) | £6.75 | £7.50 | + £0.75 11.1% increase |
| | £6.75 | £7.50 | + £0.75 11.1% increase |
| Waitrose Ltd Waitrose Frozen Mackerel Fillets (380g) | £6.50 | £10.00 | + £3.50 53.8% increase |
| | £6.50 | £10.00 | + £3.50 53.8% increase |
| Waitrose Ltd Waitrose 2 Frozen Breaded Plaice Fillets (280g) | £4.30 | £4.30 | £0.00 No change |
| | £4.30 | £4.30 | £0.00 No change |
| Waitrose Ltd Waitrose Frozen Line Caught Cod Fillets MSC (475g) | £9.00 | £12.50 | + £3.50 38.9% increase |
| | £9.00 | £12.50 | + £3.50 38.9% increase |
| Waitrose Ltd Waitrose Frozen 2 Haddock Fillets MSC (280g) | £6.50 | £7.00 | + £0.50 7.7% increase |
| | £6.50 | £7.00 | + £0.50 7.7% increase |
| Waitrose Ltd Waitrose Haddock Fillets MSC (240g) | £5.90 | £7.30 | + £1.40 23.7% increase |
| | £5.90 | £7.30 | + £1.40 23.7% increase |
| Waitrose Ltd Waitrose Frozen Crisp & Spicy 2 Lightly Dusted Cod230g (230g) | £3.25 | £3.25 | £0.00 No change |
| | £3.25 | £3.25 | £0.00 No change |
| Young's 4 Fish Steaks In Parsley Sauce (560g) | £4.95 | £4.95 | £0.00 No change |
| | £4.95 | £4.95 | £0.00 No change |
| Birds Eye 2 Salmon Lemon and Dill Perfectly Baked (260g) | £4.65 | £4.65 | £0.00 No change |
| | £4.65 | £4.65 | £0.00 No change |
| Quorn Vegan 2 Fishless Fillets Lemon and Pepper (200g) | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
