Issue 3 | May 19 2020

The Pulse of the Aftermarket 

A White Paper Series by Aftermarket Analytics and Full Throttle Technologies
Written by – Justin Holman PhD, CEO of Aftermarket Analytics

National Pulse

On a national level, Repair Order (RO) activity continues to recover (see Figure 1). The forecast for national RO in our last issue was -15%, proving to be accurate. We don’t expect to be this accurate every week but we’ll enjoy it this week.

Issue 2 | May 12 2020

The Pulse of the Aftermarket 

A White Paper Series by Aftermarket Analytics and Full Throttle Technologies
Written by – Justin Holman PhD, CEO of Aftermarket Analytics


Two weeks ago we released the inaugural issue of the Aftermarket Pulse, a new collaboration between Full Throttle Technologies, a provider of automotive Repair Order (RO) data  and Aftermarket Analytics, a provider of cloud-based software services for demand forecasting and inventory management. In this second issue, we’re sharing updated national Repair Order (RO) data, through the week beginning April 26, and we’re looking closer at three of the hardest hit individual markets. In addition, we are delivering our first set of RO activity forecasts.

National Pulse

On a national level there are clear signs of increasing RO activity after bottoming in early April (see Figure 1). Perhaps this increase is related to protests against shelter in place orders or perhaps it reflects a public growing weary of staying home, especially as weather improves and States begin to ease restrictions on businesses. We may also be seeing pent up demand for deferred vehicle maintenance and repair. In any case, we are encouraged to see what appears to be the formation of a bottom and an upward trend.

Issue 1 | April 27 2020

The Pulse of the Aftermarket 

A White Paper Series by Aftermarket Analytics and Full Throttle Technologies
Written by – Justin Holman PhD, CEO of Aftermarket Analytics


The purpose of this white paper is to communicate (1) a new partnership and (2) a new set of data analysis capabilities available to suppliers, distributors and retailers in the automotive aftermarket. The new partnership is a collaboration between Full Throttle Technologies and Aftermarket Analytics. Full Throttle Technologies is a provider of automotive repair order (RO) data and Aftermarket Analytics is a provider of analytical software solutions for demand forecasting and inventory management. Combined, the two companies bring together an extensive network of RO data and cutting edge analytics enabling aftermarket professionals to use RO data to drive inventory decisions and supply chain efficiency.

Data Analytics

Together, our companies provide a unique solution and an opportunity to better understand market level auto repair shop activity. The Full Throttle Technologies team has queried their massive database to provide RO activity by market for the top 20 largest metropolitan markets in the United States for 2019 and YTD 2020. The Aftermarket Analytics team has analyzed these data to provide a market-by-market snapshot of how the Covid-19 crisis has impacted automotive repair activity. The results, as expected, are fairly startling in terms of the extent to which RO activity has dropped while Covid-19 has spread (see Figure 1). 

Climate Anomalies and Aftermarket Part Sales

The map above shows temperature anomalies across the Conterminous US for calendar year 2019 through November. These anomalies relate specifically to daily Low temperatures. Where you see red, daily low temperatures were warmer than 20th Century averages (darker reds indicate much warmer daily low temps). Generally speaking, 2019 has been a much warmer than average (vs 20th Century) year, especially in the Eastern US and along the Pacific, Gulf and Atlantic Coasts (where the vast majority of Americans live). The Northern Rockies, Dakotas and western Great Plains areas have seen cooler temperatures but this isn’t as significant for most consumer products businesses because there aren’t as many people in the region.

Why look at daily low temperature anomalies? There could be many reasons but one reason is that some consumer products sell a lot more or a lot less depending on weather. For example, the starter motor in your car is far more likely to fail when the nightly low temperature is really low. So, companies in the automotive aftermarket are accustomed to selling lots of starters in the late fall and winter months when temperatures plummet.

But, what if they don’t plummet? Well, that might lead to lower sales volumes for the starter produce category. It might also leave a lot of starter inventory sitting on shelves at distribution centers. In other words, this can have a major impact on the starter motor supply chain. This appears to be the case in a large portion of the Eastern US where aftermarket companies may have expected lower sales due to milder overnight low temperatures.

And, that is exactly why Aftermarket Analytics is now offering a Climate Data Portal as part of our analytical services for the automotive aftermarket.

Contact Shawn Wills for more information.

Weather and Climate Data for the Automotive Aftermarket

At Aftermarket Analytics we’ve built dozens of replacement rate models for companies in the Automotive Aftermarket. In nearly every instance we find automotive part category replacement rates are influenced heavily by geography. Typically we find vehicles driven in colder climates, like in the Upper Midwest or in New England, have higher replacement rates. The opposite is also true for some part categories vulnerable to extreme heat. As a result, we’ve spoken to a number of parts suppliers and distributors who are very interested in a better understanding of the relationship between climate and demand for replacement parts.

More recently, we’ve heard that unseasonably warm or cool weather patterns, perhaps related to climate change, are making it more difficult to accurately forecast demand for a number of key replacement part categories. In response, we are offering a new service in 2020 to help the industry address these concerns.

I’m pleased to announce that Aftermarket Analytics will begin offering a Climate Data Portal (CDP) service beginning in Q1 2020. Our CDP will provide historical and current climate and weather data, including temperature and precipitation normals along with recent daily precip and temp highs and lows for all key markets in the U.S. The portal will enable Category Management professionals and inventory managers to identify unusual weather patterns, calculate anomalies and quantify relationships between climate variables and location specific part sales. Data in the CDP will be updated on an ongoing basis and will be easy to manipulate, visualize and download for further analysis.

Contact Shawn Wills for more information.

Forecasting the Future of the Automotive Aftermarket with New Car Sales Data

This line chart (from the St. Louis Fed website) is one I’ve looked at many times. It tells an interesting story.

It shows monthly new car sales volume in the US going all the back to Jan 1976. Along the horizontal x-axis we have the monthly time series beginning Jan 1976 on the left moving through time until the present with last month’s car sales on the far right. Along the vertical y-axis we see new car sales volume in millions. In Jan 1976 the annual rate of new car sales, seasonally adjusted, was approximately 12.8 million. More generally, car makers were selling about 14-15 million units annually during the late 1970s. Last month, Jul 2019, the seasonally adjusted annual rate was approximately 17.3 million units, which is about where it’s been for the past 5 years. It’s been a roller coaster ride but for the domestic automotive industry volume is only up 15-20% over more than 40 years. Thankfully for the industry global growth has more than made up for relatively stagnant domestic sales.

The line chart includes shaded areas corresponding to economic recessions. You can see the dual stagflation recessions in 1980 and 1981-1982. You can see the recession in the early 1990s coming on the heels of the S&L Crisis. You can see the 2001 recession following the bursting of the Tech Bubble and you can see the recent Great Recession of 2008-2009 following the collapse of the housing and mortgage markets. Obviously, recessions aren’t great for new car sales. Usually, sales volumes decrease; sometimes they drop precipitously. It’s hard to miss the way new car sales fell off a cliff in 2009.

How is this relevant a decade later? In the Automotive Aftermarket it’s extraordinarily relevant because the “sweet spot” for automotive parts suppliers, distributors and retailers is about 10 years, more or less depending on the part category. So, while most of the economy has moved past the calamity of 2008-2009 recession, the Aftermarket is still dealing with the fallout. On the flip side, during the next decade the US aftermarket industry should experience growth mirroring the upward slope we see between 2010 and 2014. For investors or entrepreneurs looking for a silver lining in recent market volatility and increasing fears of a recession, the automotive aftermarket could provide a nice counter-cyclical investment opportunity.

Announcing IA 2

Announcing IA2 

I’m very pleased to announce the release of Inventory Analyst 2.0 (IA2). This new version has the same easy-to-use interface along with all the great features and functionality in the previous version plus a plethora of new features making IA2 the most robust inventory solution in the Aftermarket. 

New features in IA2:

  • Generate Stocking Recommendations (Add, Keep or Remove)
  • Upload and analyze Sales History data
  • Upload and analyze Inventory-on-Hand (IoH) data
  • Custom business logic for stocking recommendations incorporating IoH, Sales History, VIO, Replacement Rates, Part Rankings and other data elements
  • Upload store locations, by channel
  • Auto-select regions around a store location based on sales history
  • Convert recommendations to custom format for order/return
  • Summarize aggregate store-level order/return costs
  • Analyze part coverage for gap analysis 
  • Configure custom vehicle groupings
  • Simplified part-selection interface
  • Improved UI and query performance
  • Download data to Excel worksheet with custom functions and formatting 

We’re working hard to build the best possible inventory solution for suppliers and distributors in the Aftermarket. If you would like to learn more about IA2, please contact us today! 

Contact : 218.506.8518

Inventory Recommendations from Spreadsheet to Easy Street

One of our first clients in the Automotive Aftermarket was a manufacturer of replacement parts. They had developed their own in-house methodology for generating inventory stocking recommendations for their customers. They didn’t need us to reinvent the wheel. But, they had problems applying their methodology efficiently.

They had built their system in Microsoft Excel and it was a fairly complicated process to generate SKU-level recommendations. It required a lot of copy-paste to get the right data in the right spreadsheet cells. And the manual data input process led to frequent mistakes and frustrations. Because of this, they had 2 full-time analysts who spent almost all their time waist-deep in the spreadsheet trying to keep up with requests for data-driven recommendations.

We suggested that we take their approach and spreadsheet and convert it into a web application. This had several benefits and a rapid ROI:

Understanding Vehicle Prevalence

In my last post we looked at the population of Honda Accords in New York. We calculated a few descriptive statistics and examined a few data distributions. This helped us get to know the Honda Accord population in New York but there’s a lot more we can do to understand this potential population of aftermarket part customers.

We now know the size of the Accord population but what about the rate of Accord ownership? Where are Accords popular or unpopular? Of course there are more Accords in the New York City metropolitan area where there are millions of people. But where do people own Accords at higher or lower rates? And how do these ownership rates compare with similar vehicles? This may help us avoid having too many or too few parts on the shelf in certain locations.

How Many Honda Accords are there in New York?

This simple question is at the core of what VIO data are all about.

Imagine the entrepreneur who has invented an innovative aftermarket replacement part. The part might fit dozens of different models but, for the sake of a simple illustration, let’s say it only fits the Honda Accord. So, finding out the vehicle population is the same as finding out the size of the market for this new part. And this is the denominator in the equation to calculate market share. Pretty important number, explaining why companies are willing to spend money on VIO.

According to data we downloaded and processed from, the answer to the question is there are approximately 300,000 Honda Accords in New York state.

Hey, why not give the exact number? Because all VIO data are estimates.

Even if we retrieve the data today, this minute, it would be just a static snapshot of registration records. New vehicle sales in the past month won’t show up. Recently purchased vehicles registered in a neighboring state won’t show up. Recently scrapped vehicles will still be counted. Occasionally people drive to another state and need a repair. Heck, some people register their vehicle in another state…for tax reasons or whatever. Sometimes vehicle registrations are clustered in a corporate or government office location even though the vehicles themselves are spread around the state or the country. It doesn’t matter how hard you try, the best count you can get is an estimate. If you’re thinking you’ll gain significant advantage from obtaining higher levels of precision you may be missing the mathematical forest for the trees.