Commissions and other related expense
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| | Three Months Ended September 30, | | | Nine Months Ended September 30, | |
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| | (in millions, except percentages) | |
Commissions and other related expense | | $ | 1,430.6 | | | $ | 979.4 | | | $ | 451.2 | | | | 46.1 | % | | $ | 3,963.2 | | | $ | 2,047.2 | | | $ | 1,916.0 | | | | 93.6 | % |
| | | 82.0 | % | | | 82.4 | % | | | | | | | | | | | 82.4 | % | | | 82.2 | % | | | | | | | | |
Commissions and other related expense was $1,430.6 million and $3,963.2 million during the three and nine months ended September 30, 2021, increases of $451.2 million, or 46.1%, and $1,916.0 million, or 93.6% compared to the year ago periods, respectively. Included in Commissions and other related expense were
non-cash
expenses related to stock-based compensation of $26.3 million and $82.6 million for the three and nine months ended September 30, 2021 and $0.5 million and $5.1 million for the three and nine months ended September 30, 2020, respectively. The increases in stock-based compensation expense for the three and nine months ended September 30, 2021 as compared to the year ago periods were primarily related to a
one-time
acceleration of stock-based compensation expense of $41.7 million in connection with our IPO, and stock-based compensation expense related to certain RSUs, for which the liquidity-based condition was satisfied in connection with the IPO. Commissions and other related expense excluding such
non-cash
stock-based compensation expense was $1,404.3 million and $3,880.6 million, or 80.5% and 80.7% of revenue for the three and nine months ended September 30, 2021 and $978.9 million and $2,042.1 million, or 82.4% and 82.0% for the three and nine months ended September 30, 2020, respectively. The increase in absolute dollars of commissions and other related expense, excluding the
non-cash
stock-based compensation, was primarily driven by our higher revenue. The favorable 180 and 130 basis points decreases in commissions and other related expense, excluding the
non-cash
stock-based compensation expense, expressed as a percentage of revenue in the three and nine months ended September 30, 2021, respectively, as compared to the three and nine months ended September 30, 2020 was primarily due to the change in mix of the commission arrangements we have with our agents and changes in geographic mix.
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| | Three Months Ended September 30, | | | Nine Months Ended September 30, | |
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| | (in millions, except percentages) | |
| | $ | 130.6 | | | $ | 99.7 | | | $ | 30.9 | | | | 31.0 | % | | $ | 366.2 | | | $ | 297.0 | | | $ | 69.2 | | | | 23.3 | % |
| | | 7.5 | % | | | 8.4 | % | | | | | | | | | | | 7.6 | % | | | 11.9 | % | | | | | | | | |
Sales and marketing expense was $130.6 million and $366.2 million during the three and nine months ended September 30, 2021, increases of $30.9 million, or 31.0%, and $69.2 million, or 23.3% compared to the year ago periods, respectively. Included in Sales and marketing expense were
non-cash
expenses related to stock-based compensation of $10.3 million and $27.9 million for the three and nine months ended September 30, 2021 and $2.6 million and $8.0 million for the three and nine months ended September 30, 2020, respectively. The increases in stock-based compensation expense for the three and nine months ended September 30, 2021 as compared to the year ago periods were partially due to a
one-time
acceleration of stock-based compensation expense of $1.8 million in connection with our IPO, and stock-based compensation expense related to certain RSUs, for which the liquidity-based condition was satisfied in connection with the IPO. Sales and marketing expense excluding such
non-cash
stock-based compensation expense was $120.3 million and $338.3 million, or 6.9% and 7.0% of revenue for the three and nine months ended September 30, 2021 and $97.1 million and $289.0 million, or 8.2% and 11.6% for the three and nine months ended September 30, 2020, respectively. The increase in sales and marketing expense, excluding the
non-cash
stock-based compensation expense was partially due to an increase in headcount and increased agent marketing and advertising. The decrease in sales and marketing expense excluding the
non-cash
stock-based compensation expense, expressed as a percentage of revenue during the three and nine months ended September 30, 2021 as compared to the three and nine months ended September 30, 2020, respectively, was primarily due to the economies of scale as we were able to grow revenue more quickly than the costs of our sales and marketing efforts.
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| | Three Months Ended September 30, | | | Nine Months Ended September 30, | |
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| | (in millions, except percentages) | |
| | $ | 97.0 | | | $ | 53.3 | | | $ | 43.7 | | | | 82.0 | % | | $ | 263.7 | | | $ | 158.9 | | | $ | 104.8 | | | | 66.0 | % |
| | | 5.6 | % | | | 4.5 | % | | | | | | | | | | | 5.5 | % | | | 6.4 | % | | | | | | | | |
Operations and support expense was $97.0 million and $263.7 million during the three and nine months ended September 30, 2021, increases of $43.7 million, or 82.0%, and $104.8 million, or 66.0% compared to the year ago periods, respectively. Included in Operations and support expense were
non-cash
expenses related to stock-based compensation of $4.5 million and $12.3 million for the three and nine months ended September 30, 2021 and $0.7 million and $2.2 million for the three and nine months ended September 30, 2020, respectively. The increase in stock-based compensation expense for the three and nine months ended September 30, 2021 as compared to September 30, 2020 was primarily due to a
one-time
acceleration of stock-based compensation expense of $3.1 million in connection with our IPO, and stock-based compensation expense related to certain RSUs, for which the liquidity-based condition was satisfied in connection with the IPO. Operations and support expense excluding such
non-cash
stock-based compensation expense was $92.5 million and $251.4 million, or 5.3% and 5.2% of revenue for the three and nine months ended September 30, 2021 and $52.6 million and $156.7 million, or 4.4% and 6.3% for the three and nine months ended September 30, 2020, respectively. The increase in absolute dollars, excluding such
non-cash
stock-based compensation expense, was primarily driven by an increase in compensation and other personnel-related costs due to increased headcount and costs associated with the various acquisitions completed during 2020 and 2021. The increase in operations and support expense excluding the
non-cash
stock-based compensation expense, expressed as a percentage of revenue during the three months ended September 30, 2021 as compared to the three months ended September 30, 2020, respectively, was primarily also due to an increase in compensation and other personnel-related costs due to