Finns en RR tråd om just Storebrand Multifaktor där dom har lite intressanta diskussioner:
https://community.rationalreminder.ca/t/storebrand-global-multifactor-is-it-competitive/3450
Dock kommer dom aldrig riktigt in på djupet då metodiken inte är så transparent, och ingen gjort någon regressionsanalys heller.
Svar från en som är väldigt duktig på frågan om Storebrand är värd att investera i:
I don’t see a detailed methodology, but if you find it let me know. I don’t see the raw data anywhere easily accessible either to look at the regressions.
However, some initial thoughts from the factsheet:
Storebrand Global Multifactor seeks to generate strong capital growth through a long-only, model-based investment approach which combines sustainability with four equally-weighted risk factors, all of which have historically provided excess return (Value, Momentum, Size) or higher risk-adjusted return (Low Volatility), relative to the market
It doesn’t explain how it targets either of the factors, but let’s assume value and momentum are targeted well (it’s usually not so hard). On the other hand, it focuses on low-volatility, which is suboptimal, as a different way of targeting profitability/investment factor would be likely better. Finally, that sustainability part is a bit sketchy since I have no idea how they do it and if you end up actually investing in sustainable companies or you just have a slightly less diversified portfolio at a cost of slightly lower (and less reliable) returns. Ben had a nice video about ESG investing.
Finally, about size, they contradict themselves a bit in these two statements, which makes me a bit suspicious about how good the methodology is.
The portfolio is neutral as regards sector and region, equally weighted as regards factors, and normally contains 300-400 large and medium-sizecompanies that are included in the benchmark index.
Furthermore, the cost (0.75%) is not so great either.
So, unless you have some strong extra benefits from the fact that it is a Norwegian fund, I’d be much more confident in the JPGL discussed in the other topic , or single-factor fund combinations from iShares/Vanguard (if you are UCITS-limited).
P.S. If you find more information about the methodology, or if I see a simple way to get the raw data, we can have another look
I’d then rather go for a Denmark-listed global market-cap with low costs unless you find some more convincing information or better options. I am not sure if this one is worth the cost, considering the uncertainties about its methodology. The fees are certain on the other hand. 
Det är väl oundvikligt att bortse från avgift och metodik om man ska välja en multifaktorfond framför en total market, det är ju liksom grunden till om det beslutsmässigt är värt det eller inte ? 
. Det vad vi vet idag att billigaste global indexfond kostar 0,22% i total avg medan Storebrand multifactor kostar minst 0,50% dyrare. Samtidigt som bi vet att avg har jätte stor betydelse/påvärkan på fondernas avkastning långsiktigt