MFS Research Fund B (MFRBX)
46.35
-0.08
(-0.17%)
USD |
Dec 30 2025
Returns Chart
Key Stats
| Net Expense Ratio | Total Assets Under Management | Weighted Average Dividend Yield | Turnover Ratio (Generic) |
|---|---|---|---|
| 1.51% | 8.082B | 1.02% | 41.00% |
| 1 Year Fund Level Flows | 1 Year Total Returns (Daily) | Annualized Total Returns Since Inception (Daily) | Max Drawdown (Since Inception) |
| -973.82M | 12.54% | Upgrade | Upgrade |
Basic Info
| Investment Strategy | |
| The Fund seeks to invest in a blend of small, middle and large companies with long-term growth prospects and a successful earnings track record. |
| General | |
| Security Type | Mutual Fund |
| Equity Style | Large Cap Core |
| Broad Asset Class | US Equity |
| Broad Category | Equity |
| Global Peer Group | Equity US |
| Peer Group | Large-Cap Core Funds |
| Global Macro | Equity North America |
| US Macro | Large-Cap Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | Growth & Income Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^SPXTR | 100.0% |
Net Fund Flows Versus Peer Group
1 Month
% Rank:
89
-5.085B
Peer Group Low
1.222B
Peer Group High
1 Year
% Rank:
87
-973.82M
-16.75B
Peer Group Low
12.82B
Peer Group High
3 Months
% Rank:
85
-8.723B
Peer Group Low
5.674B
Peer Group High
3 Years
% Rank:
89
-29.05B
Peer Group Low
24.07B
Peer Group High
6 Months
% Rank:
89
-12.22B
Peer Group Low
8.888B
Peer Group High
5 Years
% Rank:
86
-56.65B
Peer Group Low
24.02B
Peer Group High
YTD
% Rank:
88
-16.06B
Peer Group Low
12.43B
Peer Group High
10 Years
% Rank:
84
-126.23B
Peer Group Low
24.09B
Peer Group High
Date Unavailable
Risk
Performance Versus Peer Group
Annual Total Returns Versus Peers
As of December 31, 2025.
*Indicates data for the year is incomplete.
Asset Allocation
As of November 30, 2025.
| Type | % Net |
|---|---|
| Cash | 1.01% |
| Stock | 98.99% |
| Bond | 0.00% |
| Convertible | 0.00% |
| Preferred | 0.00% |
| Other | 0.00% |
Top 10 Holdings
| Name | % Weight | Price | % Change |
|---|---|---|---|
| Microsoft Corp. | 7.39% | 483.55 | -0.81% |
| NVIDIA Corp. | 7.26% | 186.59 | -0.51% |
| Apple, Inc. | 6.26% | 272.52 | -0.21% |
| Amazon.com, Inc. | 4.83% | 230.79 | -0.75% |
| Alphabet, Inc. | 4.51% | 312.96 | -0.28% |
| Broadcom Inc. | 4.03% | 346.08 | -1.08% |
| Meta Platforms, Inc. | 3.17% | 659.89 | -0.91% |
| Mastercard, Inc. | 2.66% | 570.96 | -1.12% |
| JPMorgan Chase & Co. | 2.54% | 322.30 | -0.35% |
| Johnson & Johnson | 1.51% | 207.03 | 0.06% |
Fees & Availability
| Fees | |
| Actual 12B-1 Fee | 1.00% |
| Actual Management Fee | 0.42% |
| Administration Fee | 239.0% |
| Maximum Front Load | -- |
| Maximum Deferred Load | 4.00% |
| Maximum Redemption Fee | 0.00% |
| General Availability | |
| Available for Insurance Product | No |
| Available for RRSP | No |
| Purchase Details | |
| Open to New Investors | No |
| Minimum Initial Investment | 1000.00 None |
| Minimum Subsequent Investment | 50.00 None |
Basic Info
| Investment Strategy | |
| The Fund seeks to invest in a blend of small, middle and large companies with long-term growth prospects and a successful earnings track record. |
| General | |
| Security Type | Mutual Fund |
| Equity Style | Large Cap Core |
| Broad Asset Class | US Equity |
| Broad Category | Equity |
| Global Peer Group | Equity US |
| Peer Group | Large-Cap Core Funds |
| Global Macro | Equity North America |
| US Macro | Large-Cap Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | Growth & Income Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^SPXTR | 100.0% |
Fundamentals
| General | |
| Distribution Yield | -- |
| Dividend Yield TTM (12-29-25) | 0.07% |
| 30-Day SEC Yield | -- |
| 7-Day SEC Yield | -- |
| Number of Holdings | 98 |
| Stock | |
| Weighted Average PE Ratio | 34.02 |
| Weighted Average Price to Sales Ratio | 8.737 |
| Weighted Average Price to Book Ratio | 11.54 |
| Weighted Median ROE | 73.81% |
| Weighted Median ROA | 17.47% |
| ROI (TTM) | 24.81% |
| Return on Investment (TTM) | 24.81% |
| Earning Yield | 0.0354 |
| LT Debt / Shareholders Equity | 0.9982 |
| Number of Equity Holdings | 97 |
As of November 30, 2025
Growth Metrics
| EPS Growth (1Y) | 28.82% |
| EPS Growth (3Y) | 19.20% |
| EPS Growth (5Y) | 21.62% |
| Sales Growth (1Y) | 17.75% |
| Sales Growth (3Y) | 14.69% |
| Sales Growth (5Y) | 15.39% |
| Sales per Share Growth (1Y) | 18.85% |
| Sales per Share Growth (3Y) | 15.67% |
| Operating Cash Flow - Growth Rate (3Y) | 20.74% |
As of November 30, 2025
Fund Details
Top Portfolio Holders
| Name | % Weight |
|---|---|
| Portfolio A | 5.00% |
| Portfolio B | 3.50% |
| Portfolio C | 2.25% |
Excel Add-In Codes
| Name: =YCI("M:MFRBX", "name") |
| Broad Asset Class: =YCI("M:MFRBX", "broad_asset_class") |
| Broad Category: =YCI("M:MFRBX", "broad_category_group") |
| Prospectus Objective: =YCI("M:MFRBX", "prospectus_objective") |
| To find the codes for any of our securities and financial metrics, see our Complete Excel Reference. |