National Grid PLC (NG) — Defensive Interval Ratio
National Grid PLC (NG) has a Defensive Interval Ratio of 239 days as of September 2025. Defensive assets of GBX6.01 Billion (cash GBX-, short-term investments GBX3.17 Billion, receivables GBX2.84 Billion) cover 239 days of daily cash needs of GBX25.16 Million/day. Check NG tangible net worth ratio to evaluate the tangible quality of the company's equity base.
Defensive Interval Ratio
Defensive Assets
Daily Cash Need
Current Liabilities
National Grid PLC Defensive Interval Ratio (1993–2025)
This chart shows how National Grid PLC's Defensive Interval Ratio has evolved across 33 annual periods from 1993 to 2025. As of September 2025, the ratio stands at 239 days, meaning defensive assets of GBX6.01 Billion can fund 239 days of operations without new revenue. Also explore NG net asset momentum to track the company's year-over-year net asset growth rate.
Annual Defensive Interval Ratio for National Grid PLC (1993–2025)
The table below presents the year-by-year Defensive Interval Ratio for National Grid PLC from 1993 to 2025, covering 33 annual filings. Each row shows defensive assets, daily cash need, the DIR in days, and the change in days compared to the prior year. For live market cap and the full company financial profile, see National Grid PLC (NG) market capitalisation.
| Year | DIR (days) | Defensive Assets (GBX) | Daily Cash Need | Cash | ST Investments | Change (days) |
|---|---|---|---|---|---|---|
| 2025 | 327 days | GBX9.51 Billion | GBX29.10 Million/day | GBX- | GBX5.75 Billion | ▲ +111 days |
| 2024 | 216 days | GBX6.74 Billion | GBX31.20 Million/day | GBX- | GBX3.70 Billion | ▼ -27 days |
| 2023 | 243 days | GBX6.09 Billion | GBX25.01 Million/day | GBX- | GBX2.60 Billion | ▲ +147 days |
| 2022 | 96 days | GBX6.54 Billion | GBX67.86 Million/day | GBX0.00 | GBX3.15 Billion | ▼ -98 days |
| 2021 | 194 days | GBX4.98 Billion | GBX25.67 Million/day | GBX40.00 Million | GBX2.34 Billion | ▼ -1 days |
| 2020 | 195 days | GBX4.58 Billion | GBX23.46 Million/day | GBX0.00 | GBX2.00 Billion | ▼ -54 days |
| 2019 | 249 days | GBX6.23 Billion | GBX25.01 Million/day | GBX75.00 Million | GBX1.98 Billion | ▲ +0 days |
| 2018 | 249 days | GBX5.93 Billion | GBX23.83 Million/day | GBX275.00 Million | GBX2.69 Billion | ▼ -233 days |
| 2017 | 481 days | GBX13.86 Billion | GBX28.80 Million/day | GBX940.00 Million | GBX8.74 Billion | ▲ +183 days |
| 2016 | 298 days | GBX6.30 Billion | GBX21.15 Million/day | GBX- | GBX3.00 Billion | ▼ -20 days |
| 2015 | 318 days | GBX6.43 Billion | GBX20.20 Million/day | GBX- | GBX2.56 Billion | ▼ -46 days |
| 2014 | 365 days | GBX7.33 Billion | GBX20.08 Million/day | GBX- | GBX3.60 Billion | ▼ -23 days |
| 2013 | 388 days | GBX7.91 Billion | GBX20.40 Million/day | GBX- | GBX5.43 Billion | ▲ +123 days |
| 2012 | 265 days | GBX4.36 Billion | GBX16.45 Million/day | GBX- | GBX2.39 Billion | ▲ +18 days |
| 2011 | 247 days | GBX4.62 Billion | GBX18.70 Million/day | GBX- | GBX3.41 Billion | ▲ +80 days |
| 2010 | 167 days | GBX3.00 Billion | GBX17.97 Million/day | GBX- | GBX1.65 Billion | ▼ -33 days |
| 2009 | 200 days | GBX3.85 Billion | GBX19.25 Million/day | GBX- | GBX2.20 Billion | ▲ +26 days |
| 2008 | 174 days | GBX3.41 Billion | GBX19.58 Million/day | GBX- | GBX2.10 Billion | ▼ -267 days |
| 2007 | 442 days | GBX4.07 Billion | GBX9.21 Million/day | GBX- | GBX2.10 Billion | ▲ +354 days |
| 2006 | 87 days | GBX1.36 Billion | GBX15.57 Million/day | GBX- | GBX384.00 Million | ▲ +1 days |
| 2005 | 87 days | GBX1.42 Billion | GBX16.37 Million/day | GBX- | GBX398.00 Million | ▼ -303 days |
| 2004 | 390 days | GBX4.82 Billion | GBX12.36 Million/day | GBX- | GBX520.00 Million | ▼ -22 days |
| 2003 | 411 days | GBX5.69 Billion | GBX13.82 Million/day | GBX- | GBX482.00 Million | ▼ -277 days |
| 2002 | 688 days | GBX5.60 Billion | GBX8.14 Million/day | GBX- | GBX15.40 Million | ▲ +373 days |
| 2001 | 316 days | GBX1.91 Billion | GBX6.06 Million/day | GBX- | GBX16.60 Million | ▲ +80 days |
| 2000 | 236 days | GBX1.20 Billion | GBX5.10 Million/day | GBX- | GBX16.60 Million | ▲ +190 days |
| 1999 | 46 days | GBX177.60 Million | GBX3.88 Million/day | GBX- | GBX16.60 Million | ▼ -55 days |
| 1998 | 101 days | GBX302.50 Million | GBX3.01 Million/day | GBX- | GBX10.50 Million | ▲ +60 days |
| 1997 | 40 days | GBX107.20 Million | GBX2.67 Million/day | GBX- | GBX100.00K | ▼ -85 days |
| 1996 | 125 days | GBX278.70 Million | GBX2.22 Million/day | GBX- | GBX100.00K | ▲ +37 days |
| 1995 | 89 days | GBX167.20 Million | GBX1.88 Million/day | GBX- | GBX78.20 Million | ▼ -10 days |
| 1994 | 99 days | GBX218.60 Million | GBX2.22 Million/day | GBX- | GBX121.30 Million | ▲ +68 days |
| 1993 | 31 days | GBX76.10 Million | GBX2.46 Million/day | GBX- | GBX- | — |