Tim Cornelissen
@timcornelissen.bsky.social
Senior Risk Analyst at Moody's RMS working on catastrophe modeling.
PhD in Physics.
Dutchie in the US.
Views my own.
PhD in Physics.
Dutchie in the US.
Views my own.
This is much cleaner than the join and coalesce I've been using to do similar things!
October 31, 2025 at 10:17 AM
This is much cleaner than the join and coalesce I've been using to do similar things!
A cat bond has risk metrics associated with it: the risk that investors lose their money, often in the 1-2% range. This allows investors to determine their risk appetite.
Cat bonds are attractive because of the diversification they offer: even if the stock market crashes, you'll still get a return
Cat bonds are attractive because of the diversification they offer: even if the stock market crashes, you'll still get a return
Catastrophe Bond Market Yield (Cat bond yields) - Artemis.bm
Catastrophe Bond Market Yield (USD) Using this chart you can analyse the yield, or return potential, of the outstanding catastrophe bond market over time. If you’ve ever been wondering “what is the yi...
www.artemis.bm
October 31, 2025 at 10:10 AM
A cat bond has risk metrics associated with it: the risk that investors lose their money, often in the 1-2% range. This allows investors to determine their risk appetite.
Cat bonds are attractive because of the diversification they offer: even if the stock market crashes, you'll still get a return
Cat bonds are attractive because of the diversification they offer: even if the stock market crashes, you'll still get a return
Can't seem to DM you, but I might be able to help out depending on what exactly you are looking for!
September 26, 2025 at 8:38 PM
Can't seem to DM you, but I might be able to help out depending on what exactly you are looking for!
I've built a new WF model that shows that the entirety of California will be on fire under RCP8.5 (which year does not seem relevant). My model also shows the Palisades as a high risk area, so it must be a pretty good model...
August 19, 2025 at 4:04 PM
I've built a new WF model that shows that the entirety of California will be on fire under RCP8.5 (which year does not seem relevant). My model also shows the Palisades as a high risk area, so it must be a pretty good model...
The first cat bond ETF was launched not too long ago! So we can see how that works out. www.artemis.bm/news/brookmo...
Brookmont cat bond ETF trades over 150k shares totalling $3.03m, in first day - Artemis.bm
The Brookmont Catastrophic Bond ETF (ILS), saw 150,750 shares traded in its first day listed on the New York Stock Exchange (NYSE), resulting in $3.03
www.artemis.bm
August 19, 2025 at 11:45 AM
The first cat bond ETF was launched not too long ago! So we can see how that works out. www.artemis.bm/news/brookmo...
To make things more confusing, Moody's wildfire model does actually also provide a climate change view to give an estimate of the increase in risk for longer time horizons (say 2050). But that's indeed not what insurers use to assess their risk and set their rates.
August 7, 2025 at 1:34 AM
To make things more confusing, Moody's wildfire model does actually also provide a climate change view to give an estimate of the increase in risk for longer time horizons (say 2050). But that's indeed not what insurers use to assess their risk and set their rates.
They have a former catastrophe modeler on their climate team too!
August 6, 2025 at 1:38 AM
They have a former catastrophe modeler on their climate team too!
And you know that some brand consultant made a pretty penny off of it.
June 19, 2025 at 8:42 AM
And you know that some brand consultant made a pretty penny off of it.
AAPUNFOW doesn't have quite same the ring to it like AAL does now, does it?
June 6, 2025 at 1:17 AM
AAPUNFOW doesn't have quite same the ring to it like AAL does now, does it?
Yeah it's hard to find anything in QGIS that can't be done (better!) in R now! We'd often use it to explore spatial data but with packages like leaflet that is really easy in R too
March 11, 2025 at 2:00 AM
Yeah it's hard to find anything in QGIS that can't be done (better!) in R now! We'd often use it to explore spatial data but with packages like leaflet that is really easy in R too
Reposted by Tim Cornelissen
I am once again begging the New York Times to stop treating a private company’s marketing materials as anything even remotely approaching a scientific consensus
Which is not to say there’s not a consensus that hazards are getting worse or that it will affect insurance rates
Which is not to say there’s not a consensus that hazards are getting worse or that it will affect insurance rates
February 3, 2025 at 11:59 AM
I am once again begging the New York Times to stop treating a private company’s marketing materials as anything even remotely approaching a scientific consensus
Which is not to say there’s not a consensus that hazards are getting worse or that it will affect insurance rates
Which is not to say there’s not a consensus that hazards are getting worse or that it will affect insurance rates
Them and ASML!
January 30, 2025 at 10:14 PM
Them and ASML!
I'm puzzled by the primary care doctor being up there across the board. Why would you trust a medical doctor on the topic of climate change? I guess they are just considered an authority figure? I wonder how this splits across ages, because I feel like young people would have less trust in their PCP
December 21, 2024 at 4:45 PM
I'm puzzled by the primary care doctor being up there across the board. Why would you trust a medical doctor on the topic of climate change? I guess they are just considered an authority figure? I wonder how this splits across ages, because I feel like young people would have less trust in their PCP
To be fair, ASML runs on Matlab! But yeah, one of the biggest regrets of my PhD is writing my ferrroelectric simulator in Matlab and not Python...
December 14, 2024 at 5:58 PM
To be fair, ASML runs on Matlab! But yeah, one of the biggest regrets of my PhD is writing my ferrroelectric simulator in Matlab and not Python...