On my Westpac share portfolio thingy, it shows in company...

On my Westpac share portfolio thingy, it shows in company research a Price to book ratio of 0.19. Is that almost stupidly low? Albeit it's earnings per share are projected to very slowly improve from about -3.6c to about -1c in the next 3 years or so. Can't help thinking that at 13c now, it's got to be close to rock bottom, especially since they actually produce activity and have contracts.